Background: Gestational diabetes mellitus (GDM) is defined as carbohydrate intolerance occurringfor the first time during pregnancy. The prevalence of GDM varies in direct proportion to theprevalence of Type 2 diabetes for a given ethnic group or population. It is crucial to detectwomen with GDM as the condition is associated with diverse range of adverse maternal andneonatal outcomes. This study aims at determining the incidence of insulin resistance and gestational diabetes mellitus in the antenatal population and for their maternal and foetal outcomes