Aim: The aim of the present study was to assess the predicting powers of different adiposity indices on incident type 2 diabetes mellitus (T2DM) among adult men and women in Uyo Metropolis, Nigeria.
Methodology: Three thousand five hundred adult civil servants (1532 men and 1968 women), aged 18 – 60 years, were assessed for incident T2DM using 2011 Expert Committee Revised criteria for the diagnosis of T2DM.
Results: Incident T2DM was found in 180 (5.4%) participants, 73 men (4.8%) and 116 women (5.9%). Results of comparison between diabetic men and women showed that body mass index (BMI) and mid arm circumference (MAC) did not differ significantly between groups. Waist circumference (WC) and waist-hip ratios (WHR) of women with T2DM were significantly higher than those of men with T2DM (WC: P =0.001 and WHR: P=0.034). BMI and MAC had equal predicting powers in both genders with odds ratios (OR) and 95% confidence intervals (CI) as follows: BMI (OR=2.41, C.I=1.728 – 7.01 for men and 2.02, 1.51 – 6.402 for women); MAC (OR =1.624, C.I=1.824 – 7.051 for men and 1.51, 1.62 – 6.59 for women); WHR and WC were predictive of T2DM only in women. OR and C.I were as follows: – WHR (OR=2.435, 0.951- 6.413 for women and 0.729, 0.547 – 1.14 for men); WC: (2.834, 1.270 – 5.421 for women and 1.21, 0.695 -1.845 for men) respectively.
Conclusion: All adiposity indices measured were significantly associated with incident T2DM in women, with only BMI and MAC showing significant association with T2DM in men.
Christopher E. Ekpenyong
Department of Human Physiology, Faculty of Basic Medical Sciences, University of Uyo, Nigeria.
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