Table 1 Pooled relative risk for BMI, WC and WHR with incident diabetes stratified by age, gender and geographical region

From: Body mass index, waist circumference and waist:hip ratio as predictors of cardiovascular risk—a review of the literature

Measurement No. of studies Pooled relative risk
   Overall Age group Gender Region
Total 32 Overall <50 years 50 years F M Asia US Europe
Body mass index 32 1.87 1.7 2.0 2.4 2.0 2.4 1.7 2.0
Waist circumference 18 1.87 1.6 2.0 2.3 2.9 2.4 1.9 2.1
Waist:hip ratio 25 1.88 2.1 1.7 3.0 2.7 1.4 1.7 1.9
  1. Abbreviations: F, female; M, male.
  2. Adapted from Vazquez et al., (2007).