Open AccessObesity Has an Inverse Relationship with a Depressive State
Author(s) -
Kawada Tomoyuki,
Suzuki Shosuke
Publication year - 2001
Publication title -
journal of occupational health
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.664
H-Index - 59
ISSN - 1348-9585
DOI - 10.1539/joh.43.371
Subject(s) - obesity , public health , depression (economics) , family medicine , psychology , medicine , citation , gerontology , library science , computer science , nursing , pathology , economics , macroeconomics
Many studies have endeavored to determine the association between obesity and depression. Some questionnaire surveys found that obese people have increased risk for depression''. Others showed decreased risk for depression in obese people, which indicated that depression was inversely related to obesitys.6), especially in middle-aged men". There are also reports showing no effect of obesity on the risk of depression"). On this relationship, sex difference should also be considered10' "' as some discrepancies between obesity and depression exist on the relationship. Most of these reports were cross sectional studies except for studies by Roberts et al. and DiPietro et al. Although the cause-effect relationship is complex, the authors analyzed two sets of data on male workers in different companies by means of two different depression questionnaires and observed the association between obesity and depression. Furthermore, shift working in a company is also considered. A longitudinal study in this company was also conducted 6 months later to check the association between changes in body mass index (BMI) and depression. These methods will add information on the discrepancy of the association between obesity and depression in past researches.