Department of Epidemiology and Public Health, University College London, UK, and Finnish Institute of Occupational Health, Helsinki, Finland
MRC Social & Public Health Sciences Unit, University of Glasgow, UK
Department of Epidemiology and Public Health, University College London, UK, and INSERM U687-IFR69, Hôpital Paul Brousse, Villejuif Cedex, France
INSERM U687-IFR69, Hôpital Paul Brousse, Villejuif Cedex, France
Department of Epidemiology and Public Health, University College London, UK, and Semmelweis University Faculty of Medicine, 1st Department of Medicine, Hungary
Department of Epidemiology and Public Health, University College London, UK
Finnish Institute of Occupational Health, Helsinki, Finland
Department of Epidemiology and Public Health, University College London, UK
Correspondence: Mika Kivimäki, Department of Epidemiology and Public Health, University College London, 1–19 Torrington Place, WC1E 6BT London, UK. Email: m.kivimaki{at}ucl.ac.uk
None.
The Whitehall II study has been supported by grants from the Medical Research Council; British Heart Foundation; Health and Safety Executive; Department of Health; National Heart Lung and Blood Institute (HL36310), US, NIH: National Institute on Aging (AG13196), US, NIH; Agency for Health Care Policy Research (HS06516); and the John D and Catherine T MacArthur Foundation Research Networks on Successful Midlife Development and Socioeconomic Status and Health. M.K. and J.V. are supported by the Academy of Finland (Projects no. 117604, 124322); G.D.B. is a Wellcome Trust Research Fellow; A.S.-M. is supported by a `EURYI' award from the European Science Foundation; and M.G.M. is supported by a MRC Research Professorship.
Background
Prospective data on the association between common mental disorders and obesity are scarce, and the impact of ageing on this association is poorly understood.
Aims
To examine the association between common mental disorders and obesity
(body mass index
30 kg/m2) across the adult life course.
Method
The participants, 6820 men and 3346 women, aged 35–55 were screened four times during a 19-year follow-up (the Whitehall II study). Each screening included measurements of mental disorders (the General Health Questionnaire), weight and height.
Results
The excess risk of obesity in the presence of mental disorders increased with age (P = 0.004). The estimated proportion of people who were obese was 5.7% at age 40 both in the presence and absence of mental disorders, but the corresponding figures were 34.6% and 27.1% at age 70. The excess risk did not vary by gender or according to ethnic group or socioeconomic position.
Conclusions
The association between common mental disorders and obesity becomes stronger at older ages.
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