Changes in rates of depressive symptoms in a Japanese working population

Life-table analysis from a 4-year follow-up study

N. Kawakami, R. E. Roberts, Eun Lee, S. Araki

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

To investigate the effects of demographic variables on changes in rates of depressive symptoms in a non-clinical population, a 4-year follow-up study was conducted on a total of 6378 employees of a Japanese electrical company. Data were collected five times at 1-year intervals (T0-T4) using a questionnaire that included the Zung Self-rating Depression Scale (SDS). Of the non-depressed (i.e. having a SDS score of 47 or less) at baseline (N = 4857), 14% were found depressed at least once during T1-T4. Younger, never married, female and blue-collar workers were significantly at greater risk for becoming depressed during the follow-up period (P <0.05). Of the depressed at baseline (N = 505), 20% were depressed every time during T1-T4. Younger workers were significantly at greater risk for persistence of depressive symptoms during the follow-up period (P <0.05). The results suggested that age is associated with both occurrence and persistence of depressive symptoms, while gender, marital status and occupation are associated only with the occurrence.

Original languageEnglish (US)
Pages (from-to)1181-1190
Number of pages10
JournalPsychological Medicine
Volume25
Issue number6
StatePublished - 1995
Externally publishedYes

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Life Tables
Depression
Population
Marital Status
Occupations
Demography

ASJC Scopus subject areas

  • Psychiatry and Mental health
  • Psychology(all)
  • Clinical Psychology

Cite this

Changes in rates of depressive symptoms in a Japanese working population : Life-table analysis from a 4-year follow-up study. / Kawakami, N.; Roberts, R. E.; Lee, Eun; Araki, S.

In: Psychological Medicine, Vol. 25, No. 6, 1995, p. 1181-1190.

Research output: Contribution to journalArticle

Kawakami, N. ; Roberts, R. E. ; Lee, Eun ; Araki, S. / Changes in rates of depressive symptoms in a Japanese working population : Life-table analysis from a 4-year follow-up study. In: Psychological Medicine. 1995 ; Vol. 25, No. 6. pp. 1181-1190.
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