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Study Finds USPSTF Preeclampsia Guidelines Overclassify Risk and Spur Calls for Reform

High false positive rates coupled with low aspirin prescriptions under current guidelines highlight serious gaps in preventive care for pregnant individuals at moderate risk.

An image of a pregnant lady lying in a hospital bed holding her tummy while she waits for her cesarean section. Pregnant
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Overview

  • The multicenter cohort analysis of more than 5,600 singleton pregnancies showed 89% were labeled moderate or high risk but only 10.5% of moderate-risk and 23.5% of high-risk patients developed preeclampsia.
  • Researchers identified that aside from nulliparity, common moderate risk factors such as obesity, advanced maternal age and race had inconsistent or no link to actual disease incidence.
  • Aspirin prophylaxis was recommended for just 50.4% of patients with two or more moderate risk factors and 23.8% of those with a single factor, indicating significant under-prescription.
  • Molly McAdow and Cynthia Gyamfi-Bannerman advocate for revising risk criteria and adopting biomarker-based screening tests to achieve more accurate, individualized assessments.
  • USPSTF Chair Michael Silverstein reiterated aspirin’s proven benefit for high-risk women as clinicians and stakeholders push for updated guidelines to better target preventive services.