Sir, We thank Dr Ramya Chandrasekar, Mrs U Kiran and Mr ANA Weerakoddy for taking interest in our article. 1 They recommend carrying out simple anthropometric measures in the long-term follow up of indigenous Asian women with previous gestational diabetes mellitus (GDM) to identify central obesity, a marker of the metabolic syndrome, which would be more costeffective to institute secondary prevention measures than annual oral glucose tolerance testing (OGTT). We wish to emphasise that this is precisely what is carried out in our practice and published in the article. It is noteworthy that we did not carry out OGTT in the long-term follow up of these women. The word ‘cohort’in the abstract was not used in the context of the research design but to indicate a ‘cohort’of women who had experienced abnormal glucose tolerance during their last pregnancy. This study was a comparative study to determine the … more