Lei Pan1, Junhong Leng1,2, Gongshu Liu1, Cuiping Zhang1, Huikun Liu1, Min Li1, Linglin Tan1, Huiguang Tian1, Juliana C N Chan3, Gang Hu4, Zhijie Yu5, Xilin Yang2. 1. Tianjin Women and Children's Health Centre, Tianjin, China. 2. Department of Epidemiology and Biostatistics, School of Public Health, Tianjin Medical University, Tianjin, China. 3. Department of Medicine and Therapeutics, Hong Kong Institute of Diabetes and Obesity and The Chinese University of Hong Kong-Prince of Wales Hospital-International Diabetes Federation Centre of Education, Hong Kong SAR, China. 4. Chronic Disease Epidemiology Laboratory, Pennington Biomedical Research Center, Baton Rouge, LA, USA. 5. Population Cancer Research Program and Department of Pediatrics, Dalhousie University, Halifax, NS, Canada.
Abstract
OBJECTIVE: To compare pregnancy outcomes of women with gestational diabetes mellitus (GDM) newly defined by the International Association of Diabetes and Pregnancy Study Group (IADPSG)'s criteria vs GDM cases missed by a shift from the 1999 World Health Organization (WHO)'s criteria to the IADPSG's. METHODS: From 2010 to 2012, we recruited 17 808 women who registered within 12 weeks of gestation in Tianjin, China. All women underwent a 50-g 1-h glucose challenge test (GCT) at 24-28 weeks of gestation and further underwent a 75-g 2-h oral glucose tolerance test (OGTT) if the GCT result was ≥7·8 mmol/l. Women were divided into four groups, i.e., GDM defined by both criteria, GDM defined by the IADPSG's only, GDM defined by the 1999 WHO's only and non-GDM by either of them. Large for gestational age (LGA), macrosomia, pregnancy-induced hypertension (PIH) and preterm birth were compared among the four groups. Logistic regression was used to control for confounders. RESULTS: The use of IADPSG's and the 1999 WHO's criteria detected that 7·7% (n = 1378) and 6·8% (n = 1206) of women had GDM, respectively, with 429 GDM newly identified and 257 women missed by a shift from the 1999 WHO's to the IADPSG's. The IADPSG's newly defined GDM had significantly increased risks of LGA (adjusted OR: 2·23, 95%CI: 1·36-3·64) and macrosomia (2·65, 95%CI: 1·50-4·66) than the 1999 WHO's only defined GDM cases. CONCLUSIONS: A shift of the 1999 WHO's criteria to the IADPSG's diagnosed more GDM cases who had worse pregnancy outcomes than those cases missed.
OBJECTIVE: To compare pregnancy outcomes of women with gestational diabetes mellitus (GDM) newly defined by the International Association of Diabetes and Pregnancy Study Group (IADPSG)'s criteria vs GDM cases missed by a shift from the 1999 World Health Organization (WHO)'s criteria to the IADPSG's. METHODS: From 2010 to 2012, we recruited 17 808 women who registered within 12 weeks of gestation in Tianjin, China. All women underwent a 50-g 1-h glucose challenge test (GCT) at 24-28 weeks of gestation and further underwent a 75-g 2-h oral glucose tolerance test (OGTT) if the GCT result was ≥7·8 mmol/l. Women were divided into four groups, i.e., GDM defined by both criteria, GDM defined by the IADPSG's only, GDM defined by the 1999 WHO's only and non-GDM by either of them. Large for gestational age (LGA), macrosomia, pregnancy-induced hypertension (PIH) and preterm birth were compared among the four groups. Logistic regression was used to control for confounders. RESULTS: The use of IADPSG's and the 1999 WHO's criteria detected that 7·7% (n = 1378) and 6·8% (n = 1206) of women had GDM, respectively, with 429 GDM newly identified and 257 women missed by a shift from the 1999 WHO's to the IADPSG's. The IADPSG's newly defined GDM had significantly increased risks of LGA (adjusted OR: 2·23, 95%CI: 1·36-3·64) and macrosomia (2·65, 95%CI: 1·50-4·66) than the 1999 WHO's only defined GDM cases. CONCLUSIONS: A shift of the 1999 WHO's criteria to the IADPSG's diagnosed more GDM cases who had worse pregnancy outcomes than those cases missed.
Authors: Claudia Chi; See Ling Loy; Shiao-Yng Chan; Cherie Choong; Shirong Cai; Shu E Soh; Kok Hian Tan; Fabian Yap; Peter D Gluckman; Keith M Godfrey; Lynette Pei-Chi Shek; Jerry Kok Yen Chan; Michael S Kramer; Yap-Seng Chong Journal: BMC Pregnancy Childbirth Date: 2018-03-21 Impact factor: 3.007
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