Evidence map›Paper›PMID 33221927›Full record

ArticleSocial psychiatry and psychiatric epidemiology2021

An age-period-cohort analysis for prevalence of common psychiatric disorders in Japan, 1999-2017.

Tasuku Okui

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Article in Social psychiatry and psychiatric epidemiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

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0cells of the map it votes in
13citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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3 · Its place in the literature

Who cites it

13 citing papers in PubMed.

  1. Article
  2. Incidence of psychotic disorders by birth cohort: a population-based cohort study in Ontario, Canada.CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne · 2026
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4 · The record

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5 · Who and what money

Authors and funding

1 author.

Tasuku OkuiKyushu University Hospital, Medical Information Center, Maidashi 3-1-1 Higashi-ku, Fukuoka City, Fukuoka Prefecture, 812-8582, Japan. task10300@gmail.com.ORCID http://orcid.org/0000-0001-5098-8502

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThis study aimed to analyze the prevalence of common psychiatric disorders in Japan via an age-period-cohort (APC) analysis.

methodsData were used on the prevalence of schizophrenia, schizotypal, and delusional disorders; mood [affective] disorders (mood disorders, hereafter); and neurotic, stress-related, and somatoform disorders from the 1999-2017 Patient Survey in Japan. The age group was defined as 20-89 years with 5-year increments; the cohort was assigned for each age group of each year with a 1-year shift. A Bayesian APC analysis was used to decompose changes in prevalence into three effects: age, period, and cohort.

resultsThe APC analysis revealed that the peaks of age effect varied among sexes and diseases. The period effects for all the diseases showed increasing trends over the analyzed years. Although the cohort effect for the prevalence of schizophrenia, schizotypal, and delusional disorders increased until the 1960s, it decreased afterwards. On the other hand, the cohort effects for the prevalence of mood disorders and neurotic, stress-related, and somatoform disorders increased from around the 1950s, and it indicates the prevalence increased particularly in young ages over the years. Also, the trends of each effect were relatively similar between mood disorders and neurotic, stress-related, and somatoform disorders.

conclusionIncrease in public awareness and psychological stress associated with a change in a social environment is thought to affect the period and cohort effects on the prevalence of mood disorders and neurotic, stress-related, and somatoform disorders.

Indexed as

Mental DisordersAdultAgedAged, 80 and overBayes TheoremCohort StudiesHumansJapanMiddle AgedPrevalenceSomatoform DisordersYoung AdultAge-period-cohort analysisJapanPatient Survey in JapanPrevalencePsychiatric disorders

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.