Objectives of this ancillary analysis of a prospective , prevention study among Asian Indians with impaired glucose tolerance ( IGT ) were a ) to quantify the reduction in incident diabetes at 24 months in participants who achieved normal glucose tolerance ( NGT ) at 6 months ( NGT-6 m ) compared with the other participants , b ) the factors influencing the reversal to NGT at the end of the study at 24 months ( NGT-24 m ) , and c ) to assess changes in cardiometabolic risk factors in different categories of dysglycemia at 24 months .