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To characterize all hospitalizations held in mainland Portugal (2010–2015) with dementia-related agitation based on International Classification of Diseases, Ninth Revision, Clinical Modification (ICD-9-CM) coding, and to investigate whether there is a relationship between agitation and hospitalization outcomes. A retrospective observational study was conducted using an administrative dataset containing data from all mainland Portuguese public hospitals. Only hospitalization episodes for patients aged over 65 years who have received a dementia diagnosis ascertained by an ICD-9-CM code of dementia with behavioral disturbance (294.11 and 294.21) and dementia without behavioral disturbance (294.10 and 294.20) were selected. Episodes were further grouped according to the presence of an agitation code. For each episode, demographic data and hospitalization outcomes, including length of stay (LoS), in-hospital mortality, discharge destination and all-cause hospital readmissions, were sourced from the dataset. Comparative analyses were performed and multivariable logistic methods were used to estimate the adjusted associations between agitation (exposure) and outcomes. Overall, 53,156 episodes were selected, of which 6,586 had an agitation code. These were mostly related to male, younger inpatients (mean 81.19 vs. 83.29 years, p < 0.001), had a higher comorbidity burden, stayed longer at the hospital (median 9.00 vs. 8.00 days, p < 0.001) and frequently ended being transferred to another facility with inpatient care. Agitation was shown to independently increase LoS (aOR = 1.385; 95%CI:1.314–1.461), but not the risk of a fatal outcome (aOR = 0.648; 95%CI:0.600–0.700). These results support the importance of detecting and managing agitation early on admission, since its prompt management may prevent lengthy disruptive hospitalizations. [ABSTRACT FROM AUTHOR]

Bipolar Disorder (BD) is a mental disorder which frequently requires long hospitalizations and need for acute psychiatric care. The aim of this study was to describe a nationwide perspective of BD related hospitalizations and to use a BigData based approach in mental health research. We performed a retrospective observational study using a nationwide hospitalization database containing all hospitalizations registered in Portuguese public hospitals from 2008-2015. Hospitalizations with a primary diagnosis of BD were selected based on International Classification of Diseases version 9, Clinical Modification (ICD-9-CM) codes of diagnosis 296.xx (excluding 296.2x; 296.3x and 296.9x). From 20,807 hospitalizations belonging to 13,300 patients, around 33.4% occurred in male patients with a median length of stay of 16.0 days and a mean age of 47.9 years. The most common hospitalization diagnosis in BD has the code 296.4x (manic episode) representing 34.3% of all hospitalizations, followed by the code 296.5x (depressed episode) with 21.4%. The mean estimated hospitalization charge was 3,508.5€ per episode, with a total charge of 73M€ in the 8-year period of this study.This is a nationwide study giving a broad perspective of the BD hospitalization panorama at a national level. We found important differences in hospitalization characteristics by sex, age and primary diagnosis. [ABSTRACT FROM AUTHOR]

Introduction: Recent evidence suggests that incidence of Anorexia nervosa (AN) has remained stable over the last decades in Western Europe, while decreasing for Bulimia nervosa (BN). It is well‐known that most individuals with an ED (Eating disorder) do not seek medical treatment. Objective: The present study analyses hospitalizations related with EDs held in mainland Portuguese public hospitals between 2000 and 2014. Method: A retrospective observational study was performed gathering all inpatient episodes with primary or secondary diagnosis of ED. Number of patients, gender, mean age at discharge, suicide‐attempts related hospitalizations, in‐hospital mortality, length of stay, and mean charges were analyzed. Results: There were a total of 4,485 hospitalizations with an associated ED. AN was the most frequent ED (n = 2,806). Suicide attempt‐related hospitalizations were most common among patients with BN (10.1% of BN hospitalizations) or AN (5.2% of AN hospitalizations). Discussion: AN has higher in‐hospital mortality than BN. We observed a higher proportion of suicide related hospitalizations in BN when compared to AN. Although pica, rumination disorder, and psychogenic vomiting represent a smaller portion of all EDs, this study was the first to describe hospitalization trends for this set of EDs for a 15‐year period, to the best of our knowledge. [ABSTRACT FROM AUTHOR]

Background: Pediatric Bipolar Disorder (BD) has been the focus of increased attention. To date, in Portugal, there is no evidence available for pediatricBD-related hospitalization rates. This study aimed to describe and characterize all pediatric hospitalizations with a primary diagnosis of BD registered in Portugal from 2000 to 2015.Methods: A retrospective observational study was conducted. Pediatric (< 18 years) inpatient episodes with a primary diagnosis of BD were selected from a national administrative database. The ICD-9-CM codes 296.x (excluding 296.2x, 296.3x and 296.9x) identified the diagnosis of interest. Additionally, age at discharge, sex, psychiatric comorbidities, length of stay (LoS), admission type and date, in-hospital mortality and hospital charges were analyzed.Results: A total of 348 hospitalizations, representing 258 patients, were identified. The overall population-based rate of hospitalizations was 1.18/100 000 youths. A non-linear increase throughout the study period was found. Patients were mostly female (60.6%), with a median age of 16 years (Q1-Q3:14-17). Admissions were mostly emergent (81%), and the median LoS was 14 days (Q1-Q3:7-24). Moreover, about 26% of all episodes were readmissions. Mean estimated charges per episode were 3503.10€, totalizing 1.20M€.Limitations: Limitations include the use of secondary data and the retrospective nature of the study.Conclusions: Annual rates of pediatric BD hospitalizations showed a non-linear increase. These findings may contribute to better understand the pediatric BD burden. Nevertheless, more research is warranted, to better characterize sociodemographic and clinical trends in pediatric BD to prevent the high number of acute hospitalizations and readmissions of these patients. [ABSTRACT FROM AUTHOR]