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. 2013 Apr 29;3(4):e002698.
doi: 10.1136/bmjopen-2013-002698. Print 2013.

Obesity in young men, and individual and combined risks of type 2 diabetes, cardiovascular morbidity and death before 55 years of age: a Danish 33-year follow-up study

Morten Schmidt  1 , Sigrun A Johannesdottir, Stanley Lemeshow, Timothy L Lash, Sinna P Ulrichsen, Hans Erik Bøtker, Henrik Toft Sørensen
Affiliations

Obesity in young men, and individual and combined risks of type 2 diabetes, cardiovascular morbidity and death before 55 years of age: a Danish 33-year follow-up study

Morten Schmidt et al. BMJ Open. .

Abstract

Objectives: To examine the association between body mass index (BMI) in young adulthood and cardiovascular risks, including venous thromboembolism, before 55 years of age.

Design: Cohort study using population-based medical databases.

Setting: Outcomes registered from all hospitals in Denmark from 1977 onwards.

Participants: 6502 men born in 1955 and eligible for conscription in Northern Denmark.

Main outcome measures: Follow-up began at participants' 22nd birthday and continued until death, emigration or 55 years of age, whichever came first. Using regression analyses, we calculated the risks and HRs, adjusting for cognitive test score and years of education.

Results: 48% of all obese young men (BMI ≥30 kg/m(2)) were either diagnosed with type 2 diabetes, hypertension, myocardial infarction, stroke or venous thromboembolism or died before reaching 55 years of age. Comparing obese men with normal weight men (BMI 18.5 to <25.0 kg/m(2)), the risk difference for any outcome was 28% (95% CI 19% to 38%) and the HR was 3.0 (95% CI 2.3 to 4.0). Compared with normal weight, obesity was associated with an event rate that was increased more than eightfold for type 2 diabetes, fourfold for venous thromboembolism and twofold for hypertension, myocardial infarction and death.

Conclusions: In this cohort of young men, obesity was strongly associated with adverse cardiometabolic events before 55 years of age, including venous thromboembolism. Compared with those of normal weight, young obese men had an absolute risk increase for type 2 diabetes, cardiovascular morbidity or premature death of almost 30%.

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Figures

Figure 1
Figure 1
Body mass index in young adulthood and predicted cumulative incidence (risk) of type 2 diabetes, hypertension, myocardial infarction, stroke, venous thromboembolism and death before age 55 years.
Figure 2
Figure 2
Body mass index in young adulthood and cumulative incidence (risk) of type 2 diabetes, cardiovascular morbidity or death before age 55 years (note that follow-up starts at age 22 and that the maximum risk is not constant on the y-axis of the various panels).
See this image and copyright information in PMC

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