Body mass index and body adiposity index in relation to percent body fat: A study in adult men of three endogamous groups of South Bengal

Publication date: Available online 23 October 2014 Source:HOMO - Journal of Comparative Human Biology Author(s): Sudip Datta Banik , Subal Das Body adiposity index (BAI), based on height and hip circumference data from Mexican-Americans and African-Americans established its relation to body fat (BF). The aim of our study was to compare body mass index (BMI) and BAI in relation to BF%. Participants were adult men of three endogamous social groups (Brahmin, Muslim and Namasudra) in a village of South 24 Parganas district in West Bengal, India. Height, weight and hip circumference of 952 individuals (370 Brahmins, 307 Muslims and 275 Namasudras) were recorded. The BMI-based nutritional status and bioelectrical impedance-based BF% were evaluated. Namasudras (33.8%) and Muslims (33.6%) had high frequency undernutrition compared to Brahmins (7.3%). High prevalence (46.22%) of excess weight (overweight+obesity) was recorded only among Brahmins. There was significant social group difference in rates of nutritional status (χ2 =93.10, p <0.0001). The BF% had higher correlation with BMI than BAI. A cut-off value of BAI (22%) was determined by binomial logistic regression analysis (BLRA). The value had best estimated relation to BF% and also coincided with WHO standard mean BF (22%) for overweight adults at BMI (≥25kg/m2). However, greater area under the receiver operating characteristic curve, higher correct prediction rate, and other results of BLRA for the cut-off valu...
Source: HOMO Journal of Comparative Human Biology - Category: Biology Source Type: research