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Objectives: Depression is a common comorbidity of chronic obstructive pulmonary disease (COPD) and is associated with increased exacerbations, healthcare utilization, and mortality. Among Medicare beneficiaries newly diagnosed with COPD, the objectives of this study were to (1) estimate the rate of new episodes of depression and (2) identify factors associated with depression.Methods: We identified beneficiaries with a first diagnosis of COPD during 2006-2012 using a 5% random sample of Medicare administrative claims data by searching for ICD-9-CM codes 490, 491.x, 492.x, 494.x, or 496. We identified episodes of depression using ICD-9-CM codes 296.2x, 296.3x, and 311.xx. We calculated incidence rates and their 95% confidence intervals (95% CI) and used a discrete time analysis to identify factors associated with development of depression.Results: Between 2006 and 2012, 125,348 beneficiaries meeting inclusion criteria were newly diagnosed with COPD. Twenty-three percent developed depression following COPD diagnosis. The annualized incidence rate of depression per 100 beneficiaries following COPD diagnosis was 9.4 (95% CI 9.3, 9.5). Rates were highest in the first 2 months following COPD diagnosis. COPD diagnosis was associated with increased risk of depression (risk ratio 1.76; 95% CI 1.73, 1.79) as were COPD-related hospitalizations (risk ratio 4.59; 95% CI 4.09, 5.15), a measure of COPD severity.Conclusions: Diagnosis of COPD increases the risk of depression. This study will aid in the allocation of resources to monitor and provide support for individuals with COPD at high risk of developing depression. [ABSTRACT FROM AUTHOR]

Objectives To examine disease-specific associations between antipsychotic dose and duration and all-cause mortality. Design Retrospective cohort study. Setting A 5% random sample of Medicare beneficiaries who had a Minimum Data Set 2.0 clinical assessment completed between 2007 and 2009. Participants Three mutually exclusive cohorts of new antipsychotic users with evidence of severe mental illness ( SMI, n = 5,621); dementia with behavioral symptoms (dementia + behavior) without SMI (n = 1,090); or delirium only without SMI or dementia + behavior (n = 2,100) were identified. Measurements Dose and duration of therapy with antipsychotics were assessed monthly with a 6-month look-back. Dose was measured as modified standardized daily dose ( mSDD), with a mSDD of 1 or less considered below or at recommended maximum geriatric dose. Duration was categorized as 30 or fewer, 31 to 60, 61 to 90, and 91 to 184 days for SMI and dementia + behavior and 7 or fewer, 8 to 30, 31 to 90, and 91 to 184 days for delirium. Complementary log-log models with mSDD and duration as time-dependent variables were used to estimate hazard ratios ( HRs) and 95% confidence intervals ( CIs) for mortality. Results In all three groups, new antipsychotic users with a mSDD of 1 or less had significantly lower mortality risk ( HRSMI = 0.77, 95% CI = 0.67-0.88; HRdementia+behavior = 0.52, 95% CI = 0.36-0.76; HRdelirium = 0.61, 95% CI = 0.44-0.85) than peers with a mSDD greater than 1. Individuals with longer duration of antipsychotic use (91-184 days for SMI and delirium) had significantly lower mortality than those with a short duration of use (≤30 days for SMI; ≤7 days for delirium). The interaction between dose and duration was statistically significant in the SMI cohort ( P < .001). Conclusion Lower mortality was observed with within-recommended dose ranges for dementia + behavior, SMI, and delirium and with long duration of antipsychotic use for the latter two disease groups. Prescribers should monitor antipsychotic dosage throughout the course of antipsychotic treatment and customize dose and duration regimens to an individual's indications. [ABSTRACT FROM AUTHOR]

Objectives To assess changes in behavioral symptoms associated with Alzheimer's disease and related dementias ( ADRDs) after antipsychotic ( AP) or antidepressant ( AD) treatment and to estimate the effect of treatment response on mortality risk. Design Retrospective cohort study using 2006-2009 Medicare administrative and prescription drug claims data linked to Minimum Data Set 2.0. Setting Long-stay (≥101 days) nursing home residents. Participants Continuously enrolled fee-for-service Medicare beneficiaries who had ADRDs, initiated (no use in prior 6 months) AP (n = 2,035) or AD (n = 1,661) treatment during or after one or more behavioral symptoms (verbally abusive, physically abusive, socially inappropriate or disruptive behavior) presented, and had reassessment of behavioral symptoms after 3 consecutive months of the initiated treatment. Measurements Behavioral symptom change was measured according to score (range 0-9, based on number and frequency of symptoms) change between baseline and reassessment (improved, <0; unchanged, 0; worsened, >0). Survival analyses were conducted on time to death after reassessment, comparing residents whose symptoms improved with those whose symptoms remained unchanged or worsened. Results APs and ADs were comparable in treatment effectiveness, as evidenced by more than 85% of the behavioral symptom episodes in each cohort improving or remaining stable. Mortality risk was lower in both cohorts ( AP: adjusted hazard ratio ( aHRAP) = 0.93, 95% confidence interval ( CI) = 0.81-1.07; AD: aHRAD = 0.82, 95% CI = 0.70-0.97) for residents whose symptoms improved than for those whose symptoms unchanged or worsened. Conclusion ADs may be reasonable pharmacological alternatives to APs in clinical management of ADRD-related behavioral symptoms. Initial treatment response may alter medication-associated mortality risk. Further study is needed to confirm findings using other data and behavioral symptom-specific instruments. [ABSTRACT FROM AUTHOR]

Objectives To examine the influence of quality measures of psychopharmacological medication ( PPM) prescribing on all-cause mortality in a Medicare long-stay nursing home ( NH) population. Design Longitudinal. Setting 2007-09 Medicare data linked to Minimum Data Set 2.0 files. Participants Four new-user cohorts of residents initiating antipsychotic (n = 13,105), antidepressant (n = 14,251), anxiolytic and sedative-hypnotic (n = 10,789), and any PPM (n = 14,568) medication. Measurements Three measures of PPM prescribing quality were assessed monthly with a 6-month look-back: evidence of appropriate indication, dose (modified standardized daily dose ( mSDD); below (<1), at (1), and above (>1) recommended geriatric dose), and duration of therapy (DOT; ≤30, 31-60, 61-90, 91-180 days from medication initiation). Complementary log-log models with quality measures as time-dependent variables were used to estimate hazard ratios (HRs) and 95% confidence intervals (CIs) for mortality. Results Appropriate use of antidepressants, anxiolytics and sedative-hypnotics, and any PPMs, as evidenced by appropriate indications, was significantly associated with lower mortality risk (HRantidepressants = 0.81, 95% CI = 0.76-0.86; HRanxiolytics and sedative-hypnotics = 0.81, 0.75-0.88; HRPPM = 0.89, 0.83-0.95). Antipsychotic and anxiolytic and sedative-hypnotic users with a mSDD of less than 1 had lower mortality risk than those with a mSDD greater than 1, whereas a protective effect was observed in antidepressant users with a mSDD greater than 1. In all four cohorts, those with a DOT of 91 to 180 days had lower mortality than those with a DOT of 1 month or less; the lower risk of mortality was detected after antipsychotic use for 31 days or longer. Conclusion Optimal PPM prescribing quality, as measured by indication and duration, is associated with low mortality. The benefit related to drug dosage varied by therapeutic class. When prescribing PPMs to NH residents, providers should consider not only drug choice, but also dose and duration of prescribed regimens. [ABSTRACT FROM AUTHOR]