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First-trimester maternal serum C-reactive protein as a predictor of third-trimester impaired glucose tolerance
Erica K Berggren1, Hilary A Roeder2, Kim A Boggess3
1Department of Obstetrics and Gynecology, Jefferson Medical College of Thomas Jefferson University, Philadelphia, PA, USA erica.berggren@gmail.com.
Objective:
We evaluated whether first-trimester high-sensitivity C-reactive protein (hsCRP), a suggested marker of pregnancy-associated hyperglycemia, predicts third-trimester impaired glucose tolerance (IGT) in a secondary analysis of a prospective cohort of nondiabetic singletons enrolled at <26 weeks gestation.
Study Design:
We measured the association between hsCRP collected at <14 weeks among women classified as IGT (gestational diabetes screening results, 135 to <200 mg/dL) and those among normoglycemic women. Multivariable modeling estimated the association between log hsCRP and IGT, adjusted for maternal body mass index (BMI).
Results:
Among 300 women, 13% (39 of 300) had IGT. The hsCRP was positively associated with glucose (P = .005). Compared with normoglycemic women, women with IGT had higher log hsCRP (0.87 ± 0.66 vs 0.67 ± 0.60, P = .04), but the association was not significant in adjusted models (adjusted odds ratio 1.20, 95% confidence interval 0.65-2.21). The hsCRP did not predict third-trimester IGT in this analysis when BMI is considered.
Conclusion:
Early identification of women at risk of IGT remains a priority, but the contribution of maternal BMI appears greater than hsCRP.
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