Depression associated with alcohol intake and younger age in Japanese office workers

A case-control and a cohort study

Kazuyoshi Ogasawara, Yukako Nakamura, Branko Aleksic, Keizo Yoshida, Katsuhisa Ando, Nakao Iwata, Yuhei Kayukawa, Norio Ozaki

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Background: Depression influences a worker's productivity and health substantially. Recently, the Japanese society and government reported that working overtime is one of the primary causes of depression and suicide in workers. However, only a few studies have investigated the relation between overtime hours and mental health status, and conclusions vary. In addition, prior findings are inconsistent in terms of the relation between depression and lifestyle factors, including alcohol intake and smoking. Additional studies are required to clarify the relation between possible risk factors and depression in Japanese workers. Methods: We performed a case-control and a cohort study. Subjects were office workers in four Japanese companies. Diagnosis of depression was made by two psychiatrists who conducted independent clinical interviews using DSM-IV-TR criteria. Results: There was no significant association between working overtime and the onset of depression. The frequency of alcohol intake was significantly related to the onset of depression. We also found a significant relation between younger age and depression onset. Body mass index and physical illness, including diabetes mellitus, had no significant association with depression onset. Limitations: Data were self-reported and the number of included female workers was small. Conclusions: Reducing working hours alone is unlikely to be effective in preventing workers' depression. Additional countermeasures are needed, including a reduction in alcohol intake and work stress. Considerations for younger workers are also needed.

Original languageEnglish
Pages (from-to)33-40
Number of pages8
JournalJournal of Affective Disorders
Volume128
Issue number1-2
DOIs
Publication statusPublished - 01-01-2011

Fingerprint

Cohort Studies
Alcohols
Depression
Age of Onset
Diagnostic and Statistical Manual of Mental Disorders
Suicide
Health Status
Psychiatry
Life Style
Diabetes Mellitus
Mental Health
Body Mass Index
Smoking
Interviews
Health

All Science Journal Classification (ASJC) codes

  • Clinical Psychology
  • Psychiatry and Mental health

Cite this

Ogasawara, Kazuyoshi ; Nakamura, Yukako ; Aleksic, Branko ; Yoshida, Keizo ; Ando, Katsuhisa ; Iwata, Nakao ; Kayukawa, Yuhei ; Ozaki, Norio. / Depression associated with alcohol intake and younger age in Japanese office workers : A case-control and a cohort study. In: Journal of Affective Disorders. 2011 ; Vol. 128, No. 1-2. pp. 33-40.
@article{f3388f8692644ac2aeaf3d3170a328df,
title = "Depression associated with alcohol intake and younger age in Japanese office workers: A case-control and a cohort study",
abstract = "Background: Depression influences a worker's productivity and health substantially. Recently, the Japanese society and government reported that working overtime is one of the primary causes of depression and suicide in workers. However, only a few studies have investigated the relation between overtime hours and mental health status, and conclusions vary. In addition, prior findings are inconsistent in terms of the relation between depression and lifestyle factors, including alcohol intake and smoking. Additional studies are required to clarify the relation between possible risk factors and depression in Japanese workers. Methods: We performed a case-control and a cohort study. Subjects were office workers in four Japanese companies. Diagnosis of depression was made by two psychiatrists who conducted independent clinical interviews using DSM-IV-TR criteria. Results: There was no significant association between working overtime and the onset of depression. The frequency of alcohol intake was significantly related to the onset of depression. We also found a significant relation between younger age and depression onset. Body mass index and physical illness, including diabetes mellitus, had no significant association with depression onset. Limitations: Data were self-reported and the number of included female workers was small. Conclusions: Reducing working hours alone is unlikely to be effective in preventing workers' depression. Additional countermeasures are needed, including a reduction in alcohol intake and work stress. Considerations for younger workers are also needed.",
author = "Kazuyoshi Ogasawara and Yukako Nakamura and Branko Aleksic and Keizo Yoshida and Katsuhisa Ando and Nakao Iwata and Yuhei Kayukawa and Norio Ozaki",
year = "2011",
month = "1",
day = "1",
doi = "10.1016/j.jad.2010.06.015",
language = "English",
volume = "128",
pages = "33--40",
journal = "Journal of Affective Disorders",
issn = "0165-0327",
publisher = "Elsevier",
number = "1-2",

}

Depression associated with alcohol intake and younger age in Japanese office workers : A case-control and a cohort study. / Ogasawara, Kazuyoshi; Nakamura, Yukako; Aleksic, Branko; Yoshida, Keizo; Ando, Katsuhisa; Iwata, Nakao; Kayukawa, Yuhei; Ozaki, Norio.

In: Journal of Affective Disorders, Vol. 128, No. 1-2, 01.01.2011, p. 33-40.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Depression associated with alcohol intake and younger age in Japanese office workers

T2 - A case-control and a cohort study

AU - Ogasawara, Kazuyoshi

AU - Nakamura, Yukako

AU - Aleksic, Branko

AU - Yoshida, Keizo

AU - Ando, Katsuhisa

AU - Iwata, Nakao

AU - Kayukawa, Yuhei

AU - Ozaki, Norio

PY - 2011/1/1

Y1 - 2011/1/1

N2 - Background: Depression influences a worker's productivity and health substantially. Recently, the Japanese society and government reported that working overtime is one of the primary causes of depression and suicide in workers. However, only a few studies have investigated the relation between overtime hours and mental health status, and conclusions vary. In addition, prior findings are inconsistent in terms of the relation between depression and lifestyle factors, including alcohol intake and smoking. Additional studies are required to clarify the relation between possible risk factors and depression in Japanese workers. Methods: We performed a case-control and a cohort study. Subjects were office workers in four Japanese companies. Diagnosis of depression was made by two psychiatrists who conducted independent clinical interviews using DSM-IV-TR criteria. Results: There was no significant association between working overtime and the onset of depression. The frequency of alcohol intake was significantly related to the onset of depression. We also found a significant relation between younger age and depression onset. Body mass index and physical illness, including diabetes mellitus, had no significant association with depression onset. Limitations: Data were self-reported and the number of included female workers was small. Conclusions: Reducing working hours alone is unlikely to be effective in preventing workers' depression. Additional countermeasures are needed, including a reduction in alcohol intake and work stress. Considerations for younger workers are also needed.

AB - Background: Depression influences a worker's productivity and health substantially. Recently, the Japanese society and government reported that working overtime is one of the primary causes of depression and suicide in workers. However, only a few studies have investigated the relation between overtime hours and mental health status, and conclusions vary. In addition, prior findings are inconsistent in terms of the relation between depression and lifestyle factors, including alcohol intake and smoking. Additional studies are required to clarify the relation between possible risk factors and depression in Japanese workers. Methods: We performed a case-control and a cohort study. Subjects were office workers in four Japanese companies. Diagnosis of depression was made by two psychiatrists who conducted independent clinical interviews using DSM-IV-TR criteria. Results: There was no significant association between working overtime and the onset of depression. The frequency of alcohol intake was significantly related to the onset of depression. We also found a significant relation between younger age and depression onset. Body mass index and physical illness, including diabetes mellitus, had no significant association with depression onset. Limitations: Data were self-reported and the number of included female workers was small. Conclusions: Reducing working hours alone is unlikely to be effective in preventing workers' depression. Additional countermeasures are needed, including a reduction in alcohol intake and work stress. Considerations for younger workers are also needed.

UR - http://www.scopus.com/inward/record.url?scp=78649676126&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=78649676126&partnerID=8YFLogxK

U2 - 10.1016/j.jad.2010.06.015

DO - 10.1016/j.jad.2010.06.015

M3 - Article

VL - 128

SP - 33

EP - 40

JO - Journal of Affective Disorders

JF - Journal of Affective Disorders

SN - 0165-0327

IS - 1-2

ER -