External validation of prognostic models to predict risk of gestational diabetes mellitus in one Dutch cohort: prospective multicentre cohort study
- Lamain - de Ruiter, M
- Kwee, A
- Naaktgeboren, CA
- de Groot, I
- Evers, IM
- Groenendaal, F
- Hering, YR
- Huisjes, AJM
- Kirpestein, C
- Monincx, WM
- Siljee, JE
- van t Zelfde, A
- van Oirschot, CM
- Vankan-Buitelaar, SA
- Vonk, MAAW
- Wiegers, TA
- Zwart, JJ
- Franx, A
- Moons, KGM
- Koster, Wendy
DOIAbstract
OBJECTIVE To perform an external validation and direct comparison of published prognostic models for early prediction of the risk of gestational diabetes mellitus, including predictors applicable in the first trimester of pregnancy. DESIGN External validation of all published prognostic models in large scale, prospective, multicentre cohort study. SETTING 31 independent midwifery practices and six hospitals in the Netherlands. PARTICIPANTS Women recruited in their first trimester (<14 weeks) of pregnancy between December 2012 and January 2014, at their initial prenatal visit. Women with pre-existing diabetes mellitus of any type were excluded. MAIN OUTCOME MEASURES Discrimination of the prognostic models was assessed by the C statistic, and...
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