Clinical risk assessment in early pregnancy for preeclampsia in nulliparous women: A population based cohort study

Anna Sandström, Jonathan M Snowden, Jonas Höijer, Matteo Bottai and Anna-Karin Wikström

PLOS ONE, 2019, vol. 14, issue 11, 1-16

Abstract: Objective: To evaluate the capacity of multivariable prediction of preeclampsia during pregnancy, based on detailed routinely collected early pregnancy data in nulliparous women. Design and setting: A population-based cohort study of 62 562 pregnancies of nulliparous women with deliveries 2008–13 in the Stockholm-Gotland Counties in Sweden. Methods: Maternal social, reproductive and medical history and medical examinations (including mean arterial pressure, proteinuria, hemoglobin and capillary glucose levels) routinely collected at the first visit in antenatal care, constitute the predictive variables. Predictive models for preeclampsia were created by three methods; logistic regression models using 1) pre-specified variables (similar to the Fetal Medicine Foundation model including maternal factors and mean arterial pressure), 2) backward selection starting from the full suite of variables, and 3) a Random forest model using the same candidate variables. The performance of the British National Institute for Health and Care Excellence (NICE) binary risk classification guidelines for preeclampsia was also evaluated. The outcome measures were diagnosis of preeclampsia with delivery

Date: 2019
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0225716

DOI: 10.1371/journal.pone.0225716

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