Search

BACKGROUND: Given limited life expectancy of nursing home (NH) residents, harms of continuing beta-blockers may outweigh clinical benefits. Our objective was to describe beta-blocker discontinuation for NH residents during the last year of life, and identify characteristics associated with earlier discontinuation. METHODS: This was a retrospective cohort study that included all long-stay residents in fee-for-service Medicare who died in 2016 and were prescribed oral beta-blockers one year before death. Beta-blocker discontinuation was defined as a gap in medication on hand for ≥45 days per Medicare Part D claims, measured from the last date drug was on hand. Comorbidities were obtained from Chronic Condition Warehouse, and other characteristics from the Minimum Data Set. Kaplan-Meier curves were used to describe time to first discontinuation. Findings were stratified by cardiac diagnoses, perceived life expectancy of

A non-invasive and sensitive blood test has long been a goal for early stage disease diagnosis and treatment for Alzheimers disease (AD) and other proteinopathy diseases. We previously reported that preeclampsia (PE), a severe pregnancy complication, is another proteinopathy disorder with impaired autophagy. We hypothesized that induced autophagy deficiency would promote accumulation of pathologic protein aggregates. Here, we describe a novel, sensitive assay that detects serum protein aggregates from patients with PE (n=33 early onset and 33 late onset) and gestational age-matched controls (n=77) as well as AD in both dementia and prodromal mild cognitive impairment (MCI, n=24) stages with age-matched controls (n=19). The assay employs exposure of genetically engineered, autophagy-deficient human trophoblasts (ADTs) to serum from patients. The aggregated protein complexes and their individual components, including transthyretin, amyloid beta -42, alpha -synuclein, and phosphorylated tau231, can be detected and quantified by co-staining with ProteoStat, a rotor dye with affinity to aggregated proteins, and respective antibodies. Detection of protein aggregates in ADTs was not dependent on transcriptional upregulation of these biomarkers. The ROC curve analysis validated the robustness of the assay for its specificity and sensitivity (PE; AUC: 1, CI: 0.949-1.00; AD; AUC: 0.986, CI: 0.832-1.00). In conclusion, we have developed a novel, noninvasive diagnostic and predictive assay for AD, MCI and PE. Funding Agencies|NIHUnited States Department of Health & Human ServicesNational Institutes of Health (NIH) - USA [P20 GM121298, 3P20GM121298-04W1, P30 GM114750]; Brown University DEANS Award; Brown University Seed Award; William and Mary Oh-William and Elsa Zopfi Professorship Award

Purpose To examine associations between physiologic stress and delirium in the setting of a direct neurologic injury. Materials and methods We obtained initial neutrophil-to-lymphocyte ratio (NLR), glucose, and troponin in consecutive non-comatose patients with non-traumatic intracerebral hemorrhage (ICH) over 1 year, then used multivariable regression models to determine associations between each biomarker and incident delirium. Delirium diagnoses were established using DSM-5-based methods, with exploratory analyses further categorizing delirium as first occurring 24 h after presentation (“later-onset”). Results Of 284 patients, delirium occurred in 55% (early-onset: 39% [n = 111]; later-onset: 16% [n = 46]). Patients with delirium had higher NLR (mean 9.0 ± 10.4 vs. 6.4 ± 5.5; p = 0.01), glucose (mean 146.5 ± 59.6 vs. 129.9 ± 41.4 mg/dL; p = 0.008), and a higher frequency of elevated troponin (>0.05 ng/mL; 21% vs. 10%, p = 0.02). In adjusted models, elevated NLR (highest quartile: OR 3.4 [95% CI 1.5–7.8]), glucose (>180 mg/dL: OR 3.1 [95% CI 1.1–8.2]), and troponin (OR 3.0 [95% CI 1.2–7.2]) were each associated with delirium, but only initial NLR was specifically associated with later-onset delirium and with delirium in non-mechanically ventilated patients. Conclusions Stress-related biomarkers corresponding to multiple organ systems are associated with ICH-related delirium. Early NLR elevation may also predict delayed-onset delirium, potentially implicating systemic inflammation as a contributory delirium mechanism.

The Centers for MedicareMedicaid Services implemented the National Partnership to Improve Dementia Care in Nursing Homes (the Partnership) to decrease antipsychotic use and improve care for nursing home (NH) residents with dementia. We determined whether the extent of antipsychotic and other psychotropic medication prescribing in AL residents with dementia mirrored that of long-stay NH (LSNH) residents after the Partnership.Using a 20% sample of fee-for-service Medicare beneficiaries with Part D, we conducted a retrospective cohort study including AL and LSNH residents with dementia. The monthly prevalence of psychotropic medication prescribing (antipsychotics, antidepressants, anxiolytics/sedative-hypnotics, anticonvulsants/mood stabilizers, benzodiazepines, and antidementia medications) was examined. We used an interrupted time-series analysis to compare medication prescribing before (July 1, 2010-March 31, 2012) and after (April 1, 2012-December 31, 2017) the Partnership in both settings.We identified 107,931 beneficiaries with ≥1 month as an AL resident and 323,766 beneficiaries with ≥1 month as a LSNH resident with dementia, including 1,923,867 person-months and 4,984,405 person-months, respectively. Antipsychotic prescribing declined over the study period in both settings. After the launch of the Partnership, the rate of decline in antipsychotic prescribing slowed in AL residents with dementia (slope change = 0.03 [95% CLs: 0.02, 0.04]) while the rate of decline in antipsychotic prescribing increased in LSNH residents with dementia (slope change = -0.12 [95% CLs: -0.16, -0.08]). Antidepressants were the most prevalent medication prescribed, anticonvulsant/mood stabilizer prescribing increased, and anxiolytic/sedative-hypnotic and antidementia medication prescribing declined.The federal Partnership to reduce antipsychotic prescribing in NH residents did not appear to affect antipsychotic prescribing in AL residents with dementia. Given the increase in the prescribing of mood stabilizers/anticonvulsants that occurred after the launch of the Partnership, monitoring may be warranted for all psychotropic medications in AL and NH settings.

Background: Cerebrovascular dysfunction confers risk for functional decline in Alzheimer’s disease (AD), yet the clinical interplay of these two pathogenic processes is not well understood. Objective: We utilized Alzheimer’s Disease Neuroimaging Initiative (ADNI) data to examine associations between peripherally derived soluble cell adhesion molecules (CAMs) and clinical diagnostic indicators of AD. Methods: Using generalized linear regression models, we examined cross-sectional relationships of soluble plasma vascular cell adhesion molecule-1 (VCAM-1), intercellular adhesion molecule-1 (ICAM-1), and E-Selectin to baseline diagnosis and functional impairment (clinical dementia rating sum-of-boxes, CDR-SB) in the ADNI cohort (n = 112 AD, n = 396 mild cognitive impairment (MCI), n = 58 cognitively normal). We further analyzed associations of these biomarkers with brain-based AD biomarkers in a subset with available cerebrospinal fluid (CSF) data (n = 351). p-values derived from main effects and interaction terms from the linear regressions were used to assess the relationship between independent and dependent variables for significance (significance level was set at 0.05 a priori for all analysis). Results: Higher mean VCAM-1 (p = 0.0026) and ICAM-1 (p = 0.0189) levels were found in AD versus MCI groups; however, not in MCI versus cognitively normal groups. Only VCAM-1 was linked with CDR-SB scores (p = 0.0157), and APOE ɛ4 genotype modified this effect. We observed independent, additive associations when VCAM-1 and CSF amyloid-β (Aβ42), total tau, phosphorylated tau (P-tau), or P-tau/Aβ42 (all

Importance The Centers for Medicare & Medicaid Services' (CMS) National Partnership to Improve Dementia Care in Nursing Homes ("CMS National Partnership") focuses on reducing antipsychotic prescribing to long-term care residents. Hospice enrollment is not an exclusionary condition for the antipsychotic quality measure reported by CMS. It is unclear how prescribing in hospice may have been impacted by the initiative. Objective Estimate the association of the CMS National Partnership with trends in antipsychotic prescribing among long-term care residents in hospice. Design Interrupted time-series analysis of a 100% Minimum Data Set sample with linked hospice claims from 2011 to 2017. Setting Long-term care nursing facilities. Participants Older adults ≥65 residing in long-term care (n = 3,741,379) and limited to those enrolled in hospice (n = 821,610). Main outcome Quarterly prevalence of antipsychotic and other psychotropic (antianxiety, hypnotic, antidepressant) use among long-term care residents; overall and among residents with dementia, stratified by hospice enrollment. Results From 2011 to 2017, parallel declines in antipsychotic prescribing were observed among long-term care residents enrolled and not enrolled in hospice (hospice: decline from 26.8% to 18.7%; non-hospice: decline from 23.0% to 14.4%). Following the 2012 CMS National Partnership, quarterly rates of antipsychotic prescribing declined significantly for both residents enrolled and not enrolled in hospice care. Declines in antipsychotic prescribing were greater for residents with dementia, with similar rates among residents enrolled and not enrolled in hospice. Among residents with dementia enrolled in hospice, use of other psychotropic medication classes including antianxiety, antidepressant, and hypnotic use remained relatively stable over time. Conclusions and relevance Declines in antipsychotic prescribing during the CMS National Partnership occurred among long-term care residents in hospice, where use may be deemed clinically appropriate. Nursing homes are an important location for the provision of dementia end-of-life care and the drivers of potentially unintended reductions in antipsychotic use merits further investigation.

The comparative effects of zoledronic acid, denosumab, and teriparatide for preventing hip fractures in frail older adults, especially those in nursing homes, were unknown. We found that denosumab and zoledronic acid may be as effective as teriparatide for hip fracture prevention in nursing home residents. Several non-oral drugs exist for osteoporosis treatment, including zoledronic acid (ZA), denosumab, and teriparatide. Little data exist on the comparative effectiveness of these drugs for hip fracture prevention in frail older adults. We examined their comparative effectiveness in one of the frailest segments of the US population—nursing home (NH) residents. We conducted a national retrospective cohort study of NH residents aged ≥ 65 years using 2012 to 2016 national US Minimum Data Set clinical assessment data and linked Medicare claims. New parenteral ZA, denosumab, and teriparatide use was assessed via Medicare Parts B and D; hip fracture outcomes via Part A; and 125 covariates for confounding adjustment via several datasets. We used inverse probability weighted (IPW) competing risk regression models to compare hip fracture risk between groups with teriparatide as the reference. The study cohort (N = 2019) included 1046 denosumab, 578 teriparatide, and 395 ZA initiators. Mean age was 85 years, 90% were female, and 68% had at least moderate functional impairment. Seventy-two residents (3.6%) had a hip fracture and 1100 (54.5%) died over a mean follow-up of 1.5 years. Compared to teriparatide use, denosumab use was associated with a 46% lower risk of hip fracture (HR 0.54, 95% CI 0.29–1.00) and no difference was observed for ZA (HR 0.70, 95% CI 0.26–1.85). Denosumab and ZA may be as effective as teriparatide for hip fracture prevention in frail older adults. Given their lower cost and easier administration, denosumab and ZA are likely preferable non-oral treatments for most frail, older adults.

OBJECTIVE: Anticholinergic/sedative drug use, measured by the Drug Burden Index (DBI), is linked to cognitive impairment in older adults. Yet, studies on the DBI’s association with neuropsychological functioning are lacking, especially in underserved groups at increased risk of cognitive impairment. We examined cross-sectional relationships between total DBI (DBI(T)) and an age-adjusted analogue (Adj DBI(T)) with the Repeatable Battery for the Assessment of Neuropsychological Status (RBANS) in diverse adults with type 2 diabetes mellitus (T2DM). Based on results of a prior study, we anticipated higher DBIs would be associated with worse memory at older ages. METHODS: One hundred five adults with T2DM (age = 57 ± 9 years, 65% female, 62% Black, 27% Hispanic/Latino, Hb(A1c) = 7.8 ± 1.8) participated. Although memory outcomes were normally distributed, DBI(T) values were positively skewed. Spearman correlations assessed their bivariate relationships with RBANS. Adjusting for comorbidities, polypharmacy, Hb(A1c), and education, we tested the moderating effect of age on DBI-RBANS associations at mean ±1 standard deviations of age. RESULTS: One third of the participants endorsed current sedative/anticholinergic use. Mean DBI(T) was 0.385, and mean Adj DBI(T) was 0.393 (ranges = 0.00-4.22). Drug burden negatively correlated with RBANS Immediate Memory (DBI(T) r(s) = −0.237, P = .013; Adj DBI(T) r(s) = −0.239, P = .014) but no other indices. There was a significant DBI*Age interaction; the negative effect of drug burden on Immediate Memory was significant for ages greater than or equal to 55 years old. CONCLUSIONS: Sedative/anticholinergic drug exposure was prevalent in these diverse T2DM patients. Adjusting for covariates, greater drug burden was associated with worse memory acquisition among older adults only. Prospective studies should examine these relationships over time and assess whether dementia biomarkers affect the interaction.

Objectives Given an aging human immunodeficiency virus (HIV) population, we aimed to determine the prevalence of HIV for long-stay residents in US nursing homes (NHs) between 2001 and 2010 and to compare characteristics and diagnoses of HIV-positive (HIV+) and negative (HIV-) residents. Also, for residents with dementia diagnoses, we compared antipsychotic (APS) medication receipt by HIV status. Design A cross-sectional comparative study. Setting NHs in the 14 states accounting for 75% of persons living with HIV. Participants A total of 9 245 009 long-stay NH residents. Measurements Using Medicaid fee-for-service claims data in the years 2001 to 2010, together with Medicare resident assessment and Chronic Condition Warehouse data, we identified long-stay (more than 89 days) NH residents by HIV status and dementia presence. We examined dementia presence by age groups and APS medication receipt by younger (aged younger than 65 years) vs older (aged 65 years or older) residents, using logistic regression. Results Between 2001 and 2010, the prevalence of long-stay residents with HIV in NHs increased from 0.7% to 1.2%, a 71% increase. Long-stay residents with HIV were younger and less often female or white. For younger NH residents, rates of dementia were 20% and 16% for HIV+ and HIV- residents, respectively; they were 53% and 57%, respectively, for older residents. In adjusted analyses, younger HIV+ residents with dementia had greater odds of APS medication receipt than did HIV- residents (AOR = 1.3; 95% confidence interval [CI] = 1.2-1.4), but older HIV residents had lower odds (AOR = 0.9; 95% CI = 0.8-0.9). Conclusion The prevalence of long-stay HIV+ NH residents has increased over time, and given the rapid aging of the HIV population, this increase is likely to have continued. This study raises concern about potential differential quality of care for (younger) residents with HIV in NHs, but not for those aged 65 years and older. These findings contribute to the evidence base needed to ensure high-quality care for younger and older HIV+ residents in NHs.

Background Brain insulin resistance is a well-recognized abnormality in Alzheimer's disease (AD) and the likely mediator of impaired glucose utilization that emerges early and progresses with disease severity. Moreover, the rates of mild cognitive impairment (MCI) or AD are significantly greater in people with diabetes mellitus or obesity. Objective This study was designed to determine whether systemic and central nervous system (CNS) insulin resistant disease states emerge together and thus may be integrally related. Methods Insulin-related molecules were measured in paired human serum and cerebrospinal fluid (CSF) samples from 19 with MCI or early AD, and 21 controls using a multiplex ELISA platform. Results In MCI/AD, both the CSF and serum samples had significantly elevated mean levels of C-peptide and an incretin, and reduced expression of Visfatin, whereas only CSF showed significant reductions in insulin and leptin and only serum had increased glucagon, PAI-1, and ghrelin. Although the overall CSF and serum responses reflected insulin resistance together with insulin deficiency, the specific alterations measured in CSF and serum were different. Conclusion In MCI and early-stage AD, CNS and systemic insulin-related metabolic dysfunctions, including insulin resistance, occur simultaneously, suggesting that they are integrally related and possibly mediated similar pathogenic factors.

Background/objectives Limited studies suggest lower-extremity (LE) fractures are morbid events for nursing home (NH) residents. Our objective was to conduct a nationwide study comparing the incidence and resident characteristics associated with hip (proximal femur) vs nonhip LE (femoral shaft and tibia-fibula) fractures in the NH. Design Retrospective cohort study. Setting US NHs. Participants We included all long-stay residents, aged 65 years or older, enrolled in Medicare from January 1, 2008, to December 31, 2009 (N = 1 257 279). Residents were followed from long-stay qualification until the first event of LE fracture, death, or end of follow-up (2 years). Measurements Fractures were classified using Medicare diagnostic and procedural codes. Function, cognition, and medical status were obtained from the Minimum Data Set prior to long-stay qualification. Incidence rates (IRs) were calculated as the total number of fractures divided by person-years. Results During 42 800 person-years of follow-up, 52 177 residents had an LE fracture (43 695 hip, 6001 femoral shaft, 2481 tibia-fibula). The unadjusted IRs of LE fractures were 1.32/1000 person-years (95% confidence interval [CI] = 1.27-1.38) for tibia-fibula, 3.20/1000 person-years (95% CI = 3.12-3.29) for femoral shaft, and 23.32/1000 person-years (95% CI = 23.11-23.54) for hip. As compared with hip fracture residents, non-hip LE fracture residents were more likely to be immobile (58.1% vs 18.4%), to be dependent in all activities of daily living (31.6% vs 10.8%), to be transferred mechanically (20.5% vs 4.4%), to be overweight (mean body mass index = 26.6 vs 24.0 kg/m2 ), and to have diabetes (34.8% vs 25.7%). Conclusions Our findings that non-hip LE fractures often occur in severely functionally impaired residents suggest these fractures may have a different mechanism of injury than hip fractures. The resident differences in our study highlight the need for distinct prevention strategies for hip and non-hip LE fractures.

Background Bisphosphonates are seldom used in frail, older adults, in part due to lack of direct evidence of efficacy in this population and increasing concerns about safety. Objective We estimated the effects of bisphosphonates on hip fractures, nonvertebral fractures, and severe esophagitis among frail, older adults. Design Population-based retrospective cohort using 2008 to 2013 linked national Minimum Data Set assessments; Online Survey Certification and Reporting System records; and Medicare claims. Setting US nursing homes (NHs). Participants Long-stay NH residents 65 years and older without recent osteoporosis medication use (N = 24,571). Bisphosphonate initiators were 1:1 propensity score matched to calcitonin initiators (active comparator). Measurements Hospitalized hip fracture, nonvertebral fracture, and esophagitis outcomes were measured using part A claims. Hazard ratios (HRs) and 95% confidence intervals (CIs) were estimated, controlling for over 100 baseline characteristics. Results The matched cohort included 5209 new bisphosphonate users and an equal number of calcitonin users (mean age [SD] = 85 [8] years; 87% female; 52% moderate-severe cognitive impairment). Over a mean follow-up of 2.5 (SD = 1.7) years, 568 residents (5.5%) had a hip fracture, 874 (8.4%) had a nonvertebral fracture, and 199 (1.9%) had a hospitalized esophagitis event. Users of bisphosphonates were less likely than calcitonin users to experience hip fracture (HR = 0.83; 95% CI = 0.71-0.98), with an average gain in time without fracture of 28.4 days (95% CI = 6.0-50.8 days). Bisphosphonate and calcitonin users had similar rates of nonvertebral fracture (HR = 0.91; 95% CI = 0.80-1.03) and esophagitis events (HR = 1.11; 95% CI = 0.84-1.47). The effects of bisphosphonates on fractures and esophagitis were generally homogeneous across subgroups, including those defined by age, sex, history of prior fracture, and baseline fracture risk. Conclusions Use of bisphosphonates is associated with a meaningful reduction in hip fracture among frail, older adults, but little difference in nonvertebral fracture or severe esophagitis. J Am Geriatr Soc 67:768-776, 2019.

Background Fall-related injuries (FRIs) are a leading cause of morbidity, mortality, and costs among nursing home (NH) residents. Carefully defining FRIs in administrative data is essential for improving injury-reduction efforts. We developed a series of novel claims-based algorithms for identifying FRIs in long-stay NH residents. Methods This is a retrospective cohort of residents of NH residing there for at least 100 days who were continuously enrolled in Medicare Parts A and B in 2016. FRIs were identified using 4 claims-based case-qualifying (CQ) definitions (Inpatient [CQ1], Outpatient and Provider with Procedure [CQ2], Outpatient and Provider with Fall [CQ3], or Inpatient or Outpatient and Provider with Fall [CQ4]). Correlation was calculated using phi correlation coefficients. Results Of 153 220 residents (mean [SD] age 81.2 [12.1], 68.0% female), we identified 10 104 with at least one FRI according to one or more CQ definition. Among 2 950 residents with hip fractures, 1 852 (62.8%) were identified by all algorithms. Algorithm CQ4 (n = 326–2 775) identified more FRIs across all injuries while CQ1 identified less (n = 21–2 320). CQ2 identified more intracranial bleeds (1 028 vs 448) than CQ1. For nonfracture categories, few FRIs were identified using CQ1 (n = 20–488). Of the 2 320 residents with hip fractures identified by CQ1, 2 145 (92.5%) had external cause of injury codes. All algorithms were strongly correlated, with phi coefficients ranging from 0.82 to 0.99. Conclusions Claims-based algorithms applied to outpatient and provider claims identify more nonfracture FRIs. When identifying risk factors, stakeholders should select the algorithm(s) suitable for the FRI and study purpose.

Author(s): Korthauer, Laura E; Denby, Charles; Molina, David; Wanjiku, Janet; Daiello, Lori A; Drake, Jonathan D; Grill, Josh D; Ott, Brian R | Abstract: IntroductionThe goal of this study was to pilot a referral-based cognitive screening and genetic testing program for Alzheimer's disease (AD) risk assessment in a primary care setting.MethodsPrimary care providers (PCPs; Nn=n6) referred patients (Nn=n94; Mn=n63 years) to the Rhode Island Alzheimer's Disease Prevention Registry for apolipoprotein E (APOE) genotyping and cognitive screening. PCPs disclosed test results to patients and counseled them about risk factor modification.ResultsCompared to the Registry as a whole, participants were younger, more likely to be non-White, and had lower cognitive screening scores. Mild cognitive impairment participants correctly reported a higher perceived risk of developing AD. Patients who recalled being counseled about modifiable risk factors were more likely to report positive health behavior changes.DiscussionA referral-based program for cognitive and genetic AD risk assessment in a primary care setting is feasible, acceptable to patients, and yielded a more demographically diverse sample than an AD prevention registry.

Background: Delirium occurs frequently in patients with intracerebral hemorrhage (ICH), though its pathogenesis may be multifactorial. Given the potential role of systemic stressors in delirium, we aimed to explore differences in commonly measured markers of physiologic stress between delirious and non-delirious ICH patients. Methods: We performed a single-center cohort study using data from consecutive non-comatose ICH patients over 12 months. ICH and patient characteristics were prospectively collected, and the presence of delirium at any point during hospitalization was diagnosed based on DSM-5 criteria. We retrospectively abstracted admission laboratory values and selected three common markers of physiologic stress for comparison: neutrophil-lymphocyte ratio (NLR), troponin, and glucose. Using multivariable models adjusted for demographics, relevant comorbidities, and ICH severity, we determined associations between delirium and the following: NLR, using linear regression; elevated troponin (>0.05 ng/mL), using binary logistic regression; and elevated glucose (categorized as 130-180 or >180 mg/dL), using ordered logistic regression. Results: Of 284 ICH patients in our cohort, 55% (n=157) had delirium. Patients with delirium were not significantly older than non-delirious patients (mean age 71.7±16.2 vs. 68.3±15.1, p=0.07), but had larger ICH volumes (mean 23.3±24.6 vs. 7.0±10.6 cc, p Conclusions: Delirium after ICH is independently associated with elevated serum markers of physiologic stress, suggesting that systemic factors may be implicated in delirium pathogenesis.

ObjectiveTo determine the impact of delirium on withdrawal of life-sustaining treatment (WLST) after intracerebral hemorrhage (ICH) in the context of established predictors of poor outcome, using data from an institutional ICH registry.MethodsWe performed a single-center cohort study on consecutive patients with ICH admitted over 12 months. ICH features were prospectively adjudicated, and WLST and corresponding hospital day were recorded retrospectively. Patients were categorized using DSM-5 criteria as never delirious, ever delirious (either on admission or later during hospitalization), or persistently comatose. We determined the impact of delirium on WLST using Cox regression models adjusted for demographics and ICH predictors (including Glasgow Coma Scale score), then used logistic regression with receiver operating characteristic curve analysis to compare the accuracy of ICH score–based models with and without delirium category in predicting WLST.ResultsOf 311 patients (mean age 70.6 ± 15.6, median ICH score 1 [interquartile range 1–2]), 50% had delirium. WLST occurred in 26%, and median time to WLST was 1 day (0–6). WLST was more frequent in patients who developed delirium (adjusted hazard ratio 8.9 [95% confidence interval (CI) 2.1–37.6]), with high rates of WLST in both early (occurring ≤24 hours from admission) and later delirium groups. An ICH score-based model was strongly predictive of WLST (area under the curve [AUC] 0.902 [95% CI 0.863–0.941]), and the addition of delirium category further improved the model's accuracy (AUC 0.936 [95% CI 0.909–0.962], p = 0.004).ConclusionDelirium is associated with WLST after ICH regardless of when it occurs. Further study on the impact of delirium on clinician and surrogate decision-making is warranted.

Background Many factors may potentially complicate the stroke recovery process, including persistently impaired level of consciousness (LOC)—whether from residual stroke effects or from superimposed delirium. We aimed to determine the degree to which impaired LOC at hospital discharge is associated with outcomes after ischemic stroke. Methods We conducted a single-center retrospective cohort study using prospectively-collected data from 2015 to 2017, collecting total NIHSS-LOC score at discharge as well as subscores for responsiveness (LOC-R), orientation questions (LOC-Q), and command-following (LOC-C). We determined associations between LOC scores and 3-month outcome using logistic regression, with discharge location (skilled nursing facility [SNF] vs. inpatient rehabilitation) representing a pre-specified secondary outcome. Results We identified 1003 consecutive patients with ischemic stroke who survived to discharge, of whom 32% had any LOC score > 0. Total LOC score at discharge was associated with unfavorable 3-month outcome (OR 4.9 [95% CI 2.4–9.8] for LOC = 1; OR 8.0 [2.7–23.9] for LOC = 2–3; OR 6.3 [2.1–18.5] for LOC = 4–5; all patients with LOC = 6–7 had poor outcomes), as were subscores for LOC-R (OR 5.3 [1.3–21.2] for LOC-R = 1; all patients with LOC-R = 2–3 had poor outcomes) and LOC-Q (OR 4.1 [2.1–8.3] for LOC-Q = 1; OR 4.9 [1.8–13.5] for LOC-Q = 2). Total LOC score (OR 2.6 [1.3–5.3] for LOC = 1; OR 3.1 [1.2–8.2] for LOC = 2–3) and LOC-Q (OR 3.3 [1.6–6.6] for LOC-Q = 1; OR 3.4 [1.3–9.0] for LOC-Q = 2) were also associated with discharge to SNF rather than to inpatient rehabilitation. Conclusions The presence of impaired consciousness or disorientation at discharge is associated with markedly worse outcomes after ischemic stroke. Further studies are necessary to determine the separate effects of residual stroke-related LOC changes and those caused by superimposed delirium.

Medicare claims are commonly used to identify hip fractures, but there is no universally accepted definition. We found that a definition using inpatient claims identified fewer fractures than a definition including outpatient and provider claims. Few additional fractures were identified by including inconsistent diagnostic and procedural codes at contiguous sites. INTRODUCTION Medicare claims data is commonly used in research studies to identify hip fractures, but there is no universally accepted definition of fracture. Our purpose was to describe potential misclassification when hip fractures are defined using Medicare Part A (inpatient) claims without considering Part B (outpatient and provider) claims and when inconsistent diagnostic and procedural codes occur at contiguous fracture sites (e.g., femoral shaft or pelvic). METHODS Participants included all long-stay nursing home residents enrolled in Medicare Parts A and B fee-for-service between 1/1/2008 and 12/31/2009 with follow-up through 12/31/2011. We compared the number of hip fractures identified using only Part A claims to (1) Part A plus Part B claims and (2) Part A and Part B claims plus discordant codes at contiguous fracture sites. RESULTS Among 1,257,279 long-stay residents, 40,932 (3.2%) met the definition of hip fracture using Part A claims, and 41,687 residents (3.3%) met the definition using Part B claims. 4566 hip fractures identified using Part B claims would not have been captured using Part A claims. An additional 227 hip fractures were identified after considering contiguous fracture sites. CONCLUSIONS When ascertaining hip fractures, a definition using outpatient and provider claims identified 11% more fractures than a definition with only inpatient claims. Future studies should publish their definition of fracture and specify if diagnostic codes from contiguous fracture sites were used.

Objectives To evaluate how often beta-blockers were started after acute myocardial infarction (AMI) in nursing home (NH) residents who previously did not use these drugs and to evaluate which factors were associated with post-AMI use of beta-blockers. Design Retrospective cohort using linked national Minimum Data Set assessments; Online Survey, Certification and Reporting records; and Medicare claims. Setting U.S. NHs. Participants National cohort of 15,720 residents aged 65 and older who were hospitalized for AMI between May 2007 and March 2010, had not taken beta-blockers for at least 4 months before their AMI, and survived 14 days or longer after NH readmission. Measurements The outcome was beta-blocker initiation within 30 days of NH readmission. Results Fifty-seven percent (n = 8,953) of residents initiated a beta-blocker after AMI. After covariate adjustment, use of beta-blockers was less in older residents (ranging from odds ratio (OR) = 0.89, 95% confidence interval (CI) = 0.79–1.00 for aged 75–84 to OR = 0.65, 95% CI = 0.54–0.79 for ≥95 vs 65–74) and less in residents with higher levels of functional impairment (dependent or totally dependent vs independent to limited assistance: OR = 0.84, 95% CI = 0.75–0.94) and medication use (≥15 vs ≤10 medications: OR = 0.89, 95% CI = 0.80–0.99). A wide variety of resident and NH characteristics were not associated with beta-blocker use, including sex, cognitive function, comorbidity burden, and NH ownership. Conclusion Almost half of older NH residents in the United States do not initiate a beta-blocker after AMI. The absence of observed factors that strongly predict beta-blocker use may indicate a lack of consensus on how to manage older NH residents, suggesting the need to develop and disseminate thoughtful practice standards.

Objectives To examine the association between use of opioids versus other analgesics with death and functioning after hip fracture in older nursing home (NH) residents. Design Retrospective cohort using national Medicare fee-for-service claims linked to the Minimum Data Set. Setting US NHs. Participants NH residents aged ≥65 years who became a long-stay resident (>100 days in the NH) between January 2008 and December 2009, had a hospitalized hip fracture, and returned to the NH. Exposure New use of opioid versus nonopioid analgesics (acetaminophen or nonsteroidal anti-inflammatory drugs) within 14 days post hip fracture. Measurements Follow-up began on the index date and continued until the first occurrence of death, significant functional decline (3-point increase on MDS Activities of Daily Living scale), or 120 days of follow-up. Odds ratios (ORs) with 95% confidence intervals (CIs) for outcomes were estimated using inverse probability of treatment–weighted multinomial logistic regression models. Results Among the 2755 NH residents with a hip fracture included in our study, 1155 (41.9%) were opioid users, and 1600 (58.1%) were nonopioid analgesic users. The mean age was 86.3 years, 73.8% were female, and 86.0% were white. Opioid use was associated with a significantly lower likelihood of death (OR = 0.47, 95% CI 0.39-0.56) and a nonsignificant decrease in functional decline (OR = 0.77, 95% CI 0.58-1.03). Conclusion A rigorous study that addresses the limitations of this study is critical to validate our preliminary findings and provide evidence about the effect of using opioid versus nonopioid analgesics to optimize acute pain in NH residents with a hip fracture.

OBJECTIVES Poststroke delirium may be underdiagnosed due to the challenges of disentangling delirium symptoms from underlying neurologic deficits. We aimed to determine the prevalence of individual delirium features and the frequency with which they could not be assessed in patients with intracerebral hemorrhage. DESIGN Prospective observational cohort study. SETTING Neurocritical Care and Stroke Units at a university hospital. PATIENTS Consecutive patients with intracerebral hemorrhage from February 2018 to May 2018. INTERVENTIONS None. MEASUREMENTS AND MAIN RESULTS An attending neurointensivist performed 257 total daily assessments for delirium on 60 patients (mean age 68.0 [SD 18.4], 62% male, median intracerebral hemorrhage score 1.5 [interquartile range 1-2], delirium prevalence 57% [n = 34]). Each assessment included the Confusion Assessment Method for the ICU, Intensive Care Delirium Screening Checklist, a focused bedside cognitive examination, chart review, and nurse interview. We characterized individual symptom prevalence and established delirium diagnoses using Diagnostic and Statistical Manual of Mental Disorders, fifth edition criteria, then compared performance of the Confusion Assessment Method for the ICU and Intensive Care Delirium Screening Checklist against reference-standard expert diagnosis. Symptom fluctuation (61% of all assessments), psychomotor changes (46%), sleep-wake disturbances (46%), and impaired arousal (37%) had the highest prevalence and were never rated "unable to assess," while inattention (36%), disorientation (27%), and disorganized thinking (18%) were also common but were often rated 'unable to assess' (32%, 43%, and 44% of assessments, respectively), most frequently due to aphasia (32% of patients). Including nonverbal assessments of attention decreased the frequency of 'unable to assess' ratings to 11%. Since the Intensive Care Delirium Screening Checklist may be positive without the presence of symptoms that require verbal assessment, it was more accurate (sensitivity = 77%, specificity = 97%, area under the receiver operating characteristic curve, 0.87) than the Confusion Assessment Method for the ICU (sensitivity = 41%, specificity = 88%, area under the receiver operating characteristic curve, 0.64). CONCLUSIONS Delirium is common after intracerebral hemorrhage, but severe neurologic deficits may confound its assessment and lead to underdiagnosis. The Intensive Care Delirium Screening Checklist's inclusion of nonverbal features may make it more accurate than the Confusion Assessment Method for the ICU in patients with neurologic deficits, but novel tools designed for such patients may be warranted.

A recent study suggested a decline in the incidence of hip fracture among US women between 2002 and 2012, followed by a leveling in the incidence rate from 2013 to 2015. Newly admitted nursing home residents are particularly vulnerable to hip fracture, and it is unclear whether that trend is observed in this high risk group. The purpose of our study was to describe trends in hip fracture rates and postfracture mortality among 2.6 million newly admitted US nursing home residents from 2007 to 2015, and to examine whether these trends could be explained by differences in resident characteristics. Medicare claims data were linked with the Minimum Data Set (MDS), a clinical assessment performed quarterly on all nursing home residents. In each year (2007-2015), we identified newly admitted long-stay (ie, 100 days in the same facility) nursing home residents. Hip fracture was defined using Medicare Part A diagnostic codes. Follow-up time was calculated from the index date until the first event of hospitalized hip fracture, Medicare disenrollment, death, or until 1 year. Poisson regression was used to adjust rates of hip fracture for age and sex. The number of newly admitted nursing home residents ranged from 324,508 in 2007 to 257,350 in 2015. Although mean age remained similar (83 years), residents were more functionally dependent over time. There was a small absolute decrease in the incidence rate of hip fracture between 2007 (3.32/100 person-years) and 2013 (2.82/100 person-years), with an increase again in 2015 (3.03/100 person-years). Adjusting for patient characteristics somewhat attenuated these trends. One-year mortality was high following fracture in all years (42.6% in 2007, 42.1% in 2014). In summary, we observed a recent slight rise in the incidence rates of hip fracture among nursing home residents that was at least partially explained by differences in resident characteristics over time. © 2020 American Society for Bone and Mineral Research.

Objectives Clostridioides difficile infection is a major source of morbidity and mortality among frail older adults, especially those in nursing homes (NHs). Safety reports have signaled that bisphosphonate use may be a contributing cause. We therefore evaluated the risk of C difficile hospitalization associated with oral bisphosphonate use in the NH. Design Observational, retrospective new-user cohort study. Setting The cohort included US NH residents aged ≥65 years who became a long-stay resident (>100 days in the NH) between January 1, 2008 and December 31, 2009. Methods We conducted a study of NH residents using linked Medicare claims and Minimum Data Set records. Residents were new users of an oral bisphosphonate 1:1 matched to new calcitonin users (“active” comparator) on propensity scores controlling for more than 100 covariates. The outcome was risk of hospitalization for C difficile infection in a Cox proportional hazards model adjusted for previous antibiotic and proton pump inhibitor use. Results Our final analytical cohort included 17,753 bisphosphonate and 5348 calcitonin users. In the matched cohort, 84/5209 (1.6%) vs 71/5209 (1.4%) C difficile–related hospitalizations occurred in bisphosphonate and calcitonin users, respectively. We observed no significant difference in the risk of hospitalization among bisphosphonate users (hazard ratio: 1.11, 95% confidence interval: 0.80-1.51). Antibiotic and proton pump inhibitor exposure before and after osteoporosis treatment was also similar between bisphosphonate and calcitonin users. Conclusions and Implications C difficile infection should not be a consideration when prescribing bisphosphonates to frail older adults given the lack of a significant association.

Purpose To examine associations between fluctuating consciousness and Confusion Assessment Method for the Intensive Care Unit (CAM-ICU) assessments in stroke patients compared to non-neurological patients. Materials and methods We linked all recorded CAM-ICU assessments with corresponding Richmond Agitation Sedation Scale (RASS) measurements in patients with stroke or sepsis from a single-center ICU database. Fluctuating consciousness was defined by RASS variability using standard deviations (SD) over 24-h periods; regression analyses were performed to determine associations with RASS variability and CAM-ICU rating. Results We identified 16,509 paired daily summaries of CAM-ICU and RASS measurements in 546 stroke patients and 1586 sepsis patients. Stroke patients had higher odds of positive (OR 4.2, 95% CI 3.3–5.5) and “unable to assess” (UTA; OR 5.2, 95% CI 4.0–6.8) CAM-ICU ratings compared to sepsis patients, and CAM-ICU-positive and UTA assessment-days had higher RASS variability than CAM-ICU-negative assessment-days, especially in stroke patients. Based on model-implied associations of RASS variability (OR 2.0 per semi-IQR-difference in RASS-SD, 95% CI 1.7–2.2) and stroke diagnosis (OR 2.7, 95% CI 2.0–3.7) with CAM-ICU-positive assessments, over one-third of probable delirium cases among stroke patients were potentially missed by the CAM-ICU. Conclusions Post-stroke delirium may frequently go undetected by the CAM-ICU, even in the setting of fluctuating consciousness.

BACKGROUND/OBJECTIVES: Limited studies suggest lower extremity (LE) fractures are morbid events for nursing home (NH) residents. Our objective was to conduct a nationwide study comparing the incidence and resident characteristics associated with hip (proximal femur) versus non-hip LE (femoral shaft and tibia-fibula) fractures in the NH. DESIGN: Retrospective cohort study. SETTING: U.S. NHs. PARTICIPANTS: We included all long-stay residents aged ≥65 years enrolled in Medicare 1/1/2008-12/31/2009 (N=1,257,279). Residents were followed from long-stay qualification until the first event of LE fracture, death, or end of follow-up (2-years). MEASUREMENTS: Fractures were classified using Medicare diagnostic and procedural codes. Function, cognition, and medical status were obtained from the Minimum Data Set prior to long-stay qualification. Incidence rates (IR) were calculated as the total number of fractures divided by person-years. RESULTS: During 42,800 person-years follow-up, 52,177 residents had a LE fracture (43,695 hip, 6,001 femoral shaft, 2,481 tibia-fibula). The unadjusted IR of LE fractures were 1.32/1,000 person-years (95% CI, 1.27-1.38) for tibia-fibula, 3.20/1,000 person-years (95% CI, 3.12-3.29) for femoral shaft, and 23.32/1,000 person-years (95% CI, 23.11-23.54) for hip. As compared with hip fracture residents, non-hip LE fracture residents were more likely to be immobile (58.1% vs 18.4%), dependent in all ADLs (31.6% vs 10.8%), transferred mechanically (20.5% vs 4.4%), overweight (mean BMI 26.6 kg/m(2)vs. 24.0), and have diabetes (34.8% vs 25.7%). CONCLUSIONS: Our findings that non-hip LE fractures often occur in severely functionally impaired residents suggests these fractures may have a different mechanism of injury than hip fractures. The resident differences in our study highlight the need for distinct prevention strategies for hip and non-hip LE fractures.