Journal
JOURNAL OF THE AMERICAN HEART ASSOCIATION
Volume 10, Issue 11, Pages -Publisher
WILEY
DOI: 10.1161/JAHA.120.019968
Keywords
body mass index; cardiovascular risk; metabolic health; obesity; sex differences; visceral adipose tissue
Categories
Funding
- [NO1-HC-25195]
- [HHSN268201500001I]
- [75N92019D00031]
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Men and women are labeled as obese based on the same BMI criterion, but there are known differences in their fat distributions. Visceral adipose tissue (VAT) measured by computed tomography is closely related to cardiometabolic risk independent of BMI. In women, VAT shows a stronger association with cardiometabolic risk factors and cardiovascular events compared to BMI, while in men, anthropometric measures like waist circumference and BMI adequately capture VAT-associated risks.
Background Men and women are labeled as obese on the basis of a body mass index (BMI) using the same criterion despite known differences in their fat distributions. Subcutaneous adipose tissue and visceral adipose tissue (VAT), as measured by computed tomography, are advanced measures of obesity that closely correlate with cardiometabolic risk independent of BMI. However, it remains unknown whether prognostic significance of anthropometric measures of adiposity versus VAT varies in men versus women. Methods and Results In 3482 FHS (Framingham Heart Study) participants (48.1% women; mean age, 50.8 +/- 10.3 years), we tested the associations of computed tomography-based versus anthropometric measures of fat with cardiometabolic and cardiovascular disease (CVD) risk. Mean follow-up was 12.7 +/- 2.1 years. In men, VAT, as compared with BMI, had a similar strength of association with incident cardiometabolic risk factors (eg, adjusted odds ratio [OR], 2.36 [95% CI, 1.84-3.04] versus 2.66 [95% CI, 2.04-3.47] for diabetes mellitus) and CVD events (eg, adjusted hazard ratio [HR], 1.32 [95% CI, 0.97-1.80] versus 1.74 [95% CI, 1.14-2.65] for CVD death). In women, however, VAT, when compared with BMI, conferred a markedly greater association with incident cardiometabolic risk factors (eg, adjusted OR, 4.51 [95% CI, 3.13-6.50] versus 2.33 [95% CI, 1.88-3.04] for diabetes mellitus) as well as CVD events (eg, adjusted HR, 1.85 [95% CI, 1.26-2.71] versus 1.19 [95% CI, 1.01-1.40] for CVD death). Conclusions Anthropometric measures of obesity, including waist circumference and BMI, adequately capture VAT-associated cardiometabolic and cardiovascular risk in men but not in women. In women, abdominal computed tomography-based VAT measures permit more precise assessment of obesity-associated cardiometabolic and cardiovascular risk.
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