Biological and Biomedical Sciences
Objective: To compare two methods of classifying obesity based on body mass index and body fat percentage.
Methods: The cross-sectional study was conducted from November 2012 to August 2013 at Jinnah Postgraduate
Medical Centre, Karachi.
Male and female volunteers between the ages 15-65 years were selected using simple random sampling. They were
classified into different groups for body mass index and body fat percentage measured through bioelectrical
impedance scale. The subjects were sub-grouped into underweight, normal weight, overweight and obese. SPSS 11
was used for statistical analysis.
Results: The mean age of the 828 healthy volunteers was 25.67±10.10 years. A total of 552(66.6%) subjects had a
higher body fat percentage and were misclassified by body mass index. Only 276(33.3%) subjects had body fat
percentage values corresponding to the body mass index classification. The difference in terms of categorising
obesity was highly significant (p
with age (r=0.144; p=0.001) (r=0.261; p=0.001) and weight (r=0.578; p=0.001) (r=0.444; p=0.001) respectively.
Moreover body fat percentage showed a significant positive association with gender (r=0.109; p=0.027) whereas
BMI did not.
Conclusions: Body fat percentage should be incorporated for a better understanding as well as categorising of obesity.
JPMA: Journal of the Pakistan Medical Association
Fatima, S. S.,
(2014). Body mass index or body fat! which is a better obesity scale for Pakistani population?. JPMA: Journal of the Pakistan Medical Association, 64(11), 1225-1228.
Available at: http://ecommons.aku.edu/pakistan_fhs_mc_bbs/223