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, E. S. Lee, S. Araki

Research output: Contribution to journalArticle

18 Scopus citations

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 tj-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-T4Younger 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
DOIs
StatePublished - Nov 1995

ASJC Scopus subject areas

  • Applied Psychology
  • Psychiatry and Mental health

Fingerprint Dive into the research topics of 'Changes in Rates of Depressive Symptoms in a Japanese Working Population: Life-Table Analysis from a 4-Year Follow-Up Study'. Together they form a unique fingerprint.

  • Cite this