Validation study of the body adiposity index as a predictor of percent body fat in older individuals: Findings from the BLSA

Abstract

A new body adiposity index (BAI = (hip circumference)/((height) 1.5) - 18) has been developed and validated in adult populations. We aimed to assess the validity of BAI in an older population. We compared the concordance correlation coefficient between BAI, body mass index (BMI), and percent body fat (fat%; by dual-energy X-ray absorptiometry) in an older population (n = 954) participating in the Baltimore Longitudinal Study of Aging. BAI was more strongly correlated with fat% than BMI (r of. 7 vs. 6 for BAI vs BMI and fat%, respectively, p