Clifford j. Bailey

   * The risk 2 diabetes increases exponentially as BMI increases above about 25 Kg/M.

   * obesity confers a substantially higher risk of type 2 diabetes, such that BMI 30 in Europids, leading some authorities to suggest that BMI of 22 or 23 should be considered as over weight for doth Asian people.

   * In the USA, obesity is more common amongst people of Hispanic and black ethnicities                     and the increased risk of type 2 diabetes may be slightly greater than in obese people of Europen origin.

   * Compared with a normal BMI of 22 Kg/m, the risk of type 2 diabetes is increased by two to eight fold at BMI > 25, 10 -40 fold at BMI >30 and >40 - fold at BMI >35 depending on age,gender,duration and distribution of adiposity and ethnicity.

   * Ratio is an independent risk of type 2 diabetes irrespective of the extent of  obesity.


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