Ranking important predictors of the need for a high-acuity psychiatry unit among 2,064 inpatients admitted to psychiatric emergency hospitals: a random forest model.

Aims: In order to uphold and enhance the emergency psychiatric care system, a thorough comprehension of the characteristics of patients who require a high-acuity psychiatry unit is indispensable. We aimed to clarify the most important predictors of the need for a high-acuity psychiatry unit using a random forest model.

Methods: This cross-sectional study encompassed patients admitted to psychiatric emergency hospitals at 161 medical institutions across Japan between December 8, 2022, and January 31, 2023.

Long-Term Treatment With Long-Acting Injectable Antipsychotic in Schizophrenia Patients With and Without Dopamine Supersensitivity Psychosis: A 6-Year Retrospective Comparative Study.

Background: Dopamine supersensitivity psychosis (DSP) is an unstable psychotic state in patients with schizophrenia due to an upregulation of dopamine D2 receptors induced by antipsychotic medication. Long-acting antipsychotic injectable (LAI) could be advantageous for controlling the dopamine supersensitivity state, but it is not known if long-term treatment with LAI might ultimately lead to development or exacerbation of DSP.

Methods: The present study included 58 patients who had been treated with LAI for at least 3 years, with medical records for the 3 years before its introduction.

Comprehensive cost of illness of dementia in Japan: a time trend analysis based on Japanese official statistics.

Objective: To analyze the chronological change in social burden of dementia in Japan for policy implications of appropriate resource allocation and quality improvement.

Design: National, population-based, observational study from 2002 to 2014.

Setting: Seven nationwide data sets from Japanese official statistics.

Evaluation of clinical practice guidelines using the AGREE instrument: comparison between data obtained from AGREE I and AGREE II.

Objective: The Appraisal of Guidelines for Research and Evaluation (AGREE) is a representative, quantitative evaluation tool for evidence-based clinical practice guidelines (CPGs). Recently, AGREE was revised (AGREE II). The continuity of evaluation data obtained from the original version (AGREE I) has not yet been demonstrated.

Cost of illness of the prostate cancer in Japan--a time-trend analysis and future projections.

Background: The majority of patients with prostate cancer (International Classification of Diseases, 10th edition, code C61) are elderly. With Japan's rapidly society aging, both the prevalence and mortality of prostate cancer are expected to increase in the future. The objective of this study was to estimate and predict the cost of illness (COI) associated with prostate cancer in Japan.