Association of body mass index and waist-hip circumference ratio with cardiovascular disease risk factors in Micronesian Nauruans.

Jul 1, 1993International journal of obesity and related metabolic disorders : journal of the International Association for the Study of Obesity

Body mass index and waist-to-hip ratio linked to heart disease risk factors in Micronesian Nauruans

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Abstract

The mean BMI in adult Nauruans is 34.2 kg/m² for men and 34.9 kg/m² for women.

Fasting insulin and cholesterol levels vary significantly with BMI but not with waist-hip circumference ratio in men.
Fasting and 2-hour glucose levels are significantly linked to both BMI and waist-hip circumference ratio.
Diastolic blood pressure is associated with waist-hip circumference ratio but not with BMI tertiles in men.
In women, BMI and waist-hip circumference ratio show similar associations with cardiovascular risk factors.
When adjusting for age, BMI accounts for more variance in certain risk factors in men compared to waist-hip circumference ratio.

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The relationship of body mass index (BMI) and waist-hip circumference ratio (WHR) with cardiovascular disease (CVD) risk factors was examined in adult Nauruans, a population with a particularly high prevalence of non-insulin dependent diabetes mellitus and obesity, with mean BMI 34.2 kg/m2 in males and 34.9 kg/m2 in females aged > or = 20 years. In univariate analysis for men, fasting and 2 h insulin (after a 75 g glucose load), total cholesterol, high density lipoprotein (HDL)/total cholesterol ratio and uric acid levels varied significantly across tertiles of BMI but not WHR, while fasting and 2 h glucose and fasting triglyceride levels were significantly associated with both BMI and WHR. Neither systolic nor diastolic blood pressure were related to BMI tertiles, but diastolic blood pressure was associated with WHR. High density lipoprotein cholesterol was not associated with tertiles of BMI or WHR in men. In women, BMI and WHR had similar univariate associations. When the effects of BMI and WHR were studied simultaneously by analysis of covariance, adjusting for age, BMI explained more of the variance in risk factor levels in men than did WHR for fasting and 2 h insulin, total cholesterol, HDL cholesterol, HDL/total cholesterol ratio and uric acid, while in women, BMI was more important for 2 h insulin, 2 h glucose and uric acid, and equal with WHR for fasting insulin. Waist-hip circumference ratio was more important for fasting plasma glucose, fasting triglycerides and both systolic and diastolic blood pressure in men and women. There was little evidence for statistically important interaction between BMI and WHR in relation to risk factor levels.(ABSTRACT TRUNCATED AT 250 WORDS)

Association of body mass index and waist-hip circumference ratio with cardiovascular disease risk factors in Micronesian Nauruans.

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