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List of works by Yasuyuki Okumura

Antidementia drug use in Japan: Bridging the research-to-practice gap.

scientific article published on 20 May 2018

Association of high psychiatrist staffing with prolonged hospitalization, follow-up visits, and readmission in acute psychiatric units: a retrospective cohort study using a nationwide claims database.

scientific article

Associations of Adverse Clinical Course and Ingested Substances among Patients with Deliberate Drug Poisoning: A Cohort Study from an Intensive Care Unit in Japan

scientific article

Auditory verbal hallucinations increase the risk for suicide attempts in adolescents with suicidal ideation.

scientific article published on 29 July 2015

Benefits of negative thinking and negative affect: analyses of answers to an open-ended question by Japanese undergraduates

scientific article published in October 2006

Characteristics, procedural differences, and costs of inpatients with drug poisoning in acute care hospitals in Japan

scientific article published on 15 August 2012

Comparison of emergency hospital admissions for drug poisoning and major diseases: a retrospective observational study using a nationwide administrative discharge database ⬇️

scientific article published on December 5, 2012

Cost of depression among adults in Japan

scientific article

Dementia and Risk of 30-Day Readmission in Older Adults After Discharge from Acute Care Hospitals

scientific article published on 20 February 2018

Depression treatment preferences among Japanese undergraduates: using conjoint analysis

scientific article published on 21 February 2011

Effects of Reablement on the Independence of Community-Dwelling Older Adults with Mild Disability: A Randomized Controlled Trial

scientific article published on 17 October 2019

Efficacy and acceptability of group cognitive behavioral therapy for depression: a systematic review and meta-analysis

scientific article published on 19 April 2014

Efficacy of shared decision making on treatment satisfaction for patients with first-admission schizophrenia: study protocol for a randomised controlled trial

scientific article

Epidemiology of overdose episodes from the period prior to hospitalization for drug poisoning until discharge in Japan: An exploratory descriptive study using a nationwide claims database

scientific article published on 24 February 2017

Expert opinions on the first-line pharmacological treatment for delirium in Japan: a conjoint analysis

scientific article published on 18 January 2016

Exposure to psychotropic medications prior to overdose: a case-control study

scientific article published on 12 May 2015

Feasibility and efficacy of shared decision making for first-admission schizophrenia: a randomized clinical trial

scientific article

Geographical Variation in Psychiatric Admissions Among Recipients of Public Assistance

scientific article published on 22 September 2018

Hospital readmission in first-time admitted patients with schizophrenia: smoking patients had higher hospital readmission rate than non-smoking patients

scientific article published in January 2010

Identification of Psychotropic Drugs Attributed to Fatal Overdose--A Case-control Study by Data from the Tokyo Medical Examiner's Office and Prescriptions

scientific article

Is antipsychotic polypharmacy associated with metabolic syndrome even after adjustment for lifestyle effects?: a cross-sectional study

scientific article

Japan Unified Protocol Clinical Trial for Depressive and Anxiety Disorders (JUNP study): study protocol for a randomized controlled trial

scientific article

Latent structure of depression in a Japanese population sample: taxometric procedures.

scientific article published in July 2009

Out-of-pocket expenditure burdens in patients with cardiovascular conditions and psychological distress: a nationwide cross-sectional study

scientific article published on 4 February 2013

Prevalence, incidence and persistence of ADHD drug use in Japan

scientific article published on 28 May 2018

Prevalence, prescribed quantities, and trajectory of multiple prescriber episodes for benzodiazepines: A 2-year cohort study

scientific article

Prognostic value of depression, anxiety, and anger in hospitalized cardiovascular disease patients for predicting adverse cardiac outcomes

scientific article

Psychiatric Admissions and Length of Stay During Fiscal Years 2014 and 2015 in Japan: A Retrospective Cohort Study Using a Nationwide Claims Database

scientific article published on 15 September 2018

Psychosocial Burden of Undiagnosed Persistent ADHD Symptoms in 12-Year-Old Children: A Population-Based Birth Cohort Study

scientific article published on 29 March 2019

Reducing Research Waste Through Good Reporting Practices

scientific article published on 2 July 2016

Response inhibition and anxiety in adolescents: Results from a population-based community sample

scientific article published on 10 December 2018

Risk of recurrent overdose associated with prescribing patterns of psychotropic medications after nonfatal overdose

scientific article published on 02 March 2017

Spatial analysis for regional behavior of patients with mental disorders in Japan

scientific article published on 13 December 2016

Statistical power and effect sizes of depression research in Japan

scientific article published on 14 April 2011

Thyroid function tests before prescribing anti-dementia drugs: a retrospective observational study

scientific article published on 06 July 2018

Timely follow-up visits after psychiatric hospitalization and readmission in schizophrenia and bipolar disorder in Japan

scientific article published on 09 October 2018

Trends in use of psychotropic medications among patients treated with cholinesterase inhibitors in Japan from 2002 to 2010.

scientific article

Trends of psychotropic medication use among children and adolescents in Japan data from the national insurance claims database between 2002 and 2010

scientific article

Use of a Spin Strategy Can Result in Unreliable Research Findings

scientific article published on 11 February 2017

Work productivity loss with depression, diagnosed and undiagnosed, among workers in an Internet-based survey conducted in Japan

scientific article

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