|Title||Conversion of gestational diabetes mellitus to future Type 2 diabetes mellitus and the predictive value of HbA in an Indian cohort|
|Publication Type||Journal Article|
|Year of Publication||2016|
|Authors||Gupta, Y, Kapoor, D, Desai, A, Praveen, D, Joshi, R, Rozati, R, Bhatla, N, Prabhakaran, D, Reddy, P, Patel, A, Tandon, N|
|ISBN Number||1464-5491 (Electronic)<br/>0742-3071 (Linking)|
AIM: To investigate the distribution of and risk factors for dysglycaemia (Type 2 diabetes and prediabetes) in women with previous gestational diabetes mellitus in India. METHODS: All women (n = 989) from two obstetric units in New Delhi and Hyderabad with a history of gestational diabetes were invited to participate, of whom 366 (37%) agreed. Sociodemographic, medical and anthropometric data were collected and 75-g oral glucose tolerance tests were carried out. RESULTS: Within 5 years (median 14 months) of the pregnancy in which they were diagnosed with gestational diabetes, 263 (72%) women were dysglycaemic, including 119 (32%) and 144 (40%) with Type 2 diabetes and prediabetes, respectively. A higher BMI [odds ratio 1.16 per 1-kg/m2 greater BMI (95% CI 1.10, 1.28)], presence of acanthosis nigricans [odds ratio 3.10, 95% CI (1.64, 5.87)], postpartum screening interval [odds ratio 1.02 per 1 month greater screening interval 95% CI (1.01, 1.04)] and age [odds ratio 1.10 per 1-year older age 95% CI (1.04, 1.16)] had a higher likelihood of having dysglycaemia. The American Diabetes Association-recommended threshold HbA1c value of >/= 48 mmol/mol (6.5%) had a sensitivity and specificity of 81.4 and 90.7%, respectively, for determining the presence of Type 2 diabetes postpartum. CONCLUSION: The high post-pregnancy conversion rates of gestational diabetes to diabetes reported in the present study reinforce the need for mandatory postpartum screening and identification of strategies for preventing progression to Type 2 diabetes. Use of the American Diabetes Association-recommended HbA1c threshold for diabetes may lead to significant under-diagnosis. This article is protected by copyright. All rights reserved.
Conversion of gestational diabetes mellitus to future Type 2 diabetes mellitus and the predictive value of HbA in an Indian cohort