期刊
EUROPEAN JOURNAL OF ENDOCRINOLOGY
卷 169, 期 5, 页码 681-687出版社
BIOSCIENTIFICA LTD
DOI: 10.1530/EJE-13-0491
关键词
-
资金
- Health Research Board (HRB) of Ireland
- Novo Nordisk Ltd.
Objective: Previous gestational diabetes (GDM) is associated with a significant lifetime risk of type 2 diabetes. In this study, we assessed the performance of HbA1c and fasting plasma glucose (FPG) measurements against that of 75 g oral glucose tolerance testing (OGTT) for the follow- up screening of women with previous GDM. Methods: Two hundred and sixty-six women with previous GDM underwent the follow- up testing (mean of 2.6 years (S.D. 1.0) post- index pregnancy) using HbA1c (100%), and 75 g OGTT (89%) or FPG (11%). American Diabetes Association (ADA) criteria for abnormal glucose tolerance were used. Design, cohort study, and results: The ADA HbA1c high-risk cut-off of 39 mmol/mol yielded sensitivity of 45% (95% CI 32, 59), specificity of 84% (95% CI 78, 88), negative predictive value (NPV) of 87% (95% CI 82, 91) and positive predictive value ( PPV) of 39% (95% CI 27, 52) for detecting abnormal glucose tolerance. ADA high-risk criterion for FPG of 5.6 mmol/ l showed sensitivity of 80% ( 95% CI 66, 89), specificity of 100% (95% CI 98, 100), NPVof 96% (95% CI 92, 98) and PPVof 100% (95% CI 91, 100). Combining HbA1c >= 39 mmol/ mol with FPG >= 5.6 mmol/ l yielded sensitivity of90%(95% CI 78, 96), specificity of 84% (95% CI 78, 88), NPV of 97% (95% CI 94, 99) and PPVof 56% (95% CI 45, 66). Conclusions: Combining test cut- offs of 5.6 mmol/l and HbA1c 39 mmol/mol identifies 90% of women with abnormal glucose tolerance post- GDM ( mean 2.6 years (S. D. 1.0) post- index pregnancy). Applying this follow-up strategy will reduce the number of OGTT tests required by 70%, will be more convenient forwomen and their practitioners, and is likely to lead to increased uptake of long-term retesting by these women whose risk for type 2 diabetes is substantially increased.
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