title: 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.
abstract: 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 (χ(2) = 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 (≥ 25 kg/m(2)). However, greater area under the receiver operating characteristic curve, higher correct prediction rate, and other results of BLRA for the cut-off value of BMI-based overweight (≥ 25 kg/m(2)) showed its better relation to BF% than that observed for BAI cut-off at 22%. The BMI was observed to be a better indicator of adiposity compared to BAI in relation with body fat (%).
authors.affiliation: Department of Human Ecology, Centro de Investigación y de Estudios Avanzados del IPN (Cinvestav), Merida, Yucatan, Mexico. Electronic address: sdbanik@hotmail.com.
authors.forename: Sudip
authors.initials: S
authors.lastname: Datta Banik
authors.affiliation: Department of Anthropology and Tribal Development, Guru Ghasidas Vishwavidyalaya (A Central University), Bilaspur, Chhatisgarh, India.
authors.forename: Subal
authors.initials: S
authors.lastname: Das
mesh_terms: D000273:Adipose Tissue; D050154:Adiposity / Q000208:ethnology; D000328:Adult; D001827:Body Height; D015992:Body Mass Index; D005006:Ethnicity; D006801:Humans; D007194:India; D016015:Logistic Models; D008297:Male; D008875:Middle Aged; D009752:Nutritional Status; D055105:Waist Circumference