Abstract
Objective. Validate the full‐PIERS model in predicting adverse maternal outcomes in women with early‐onset preeclampsia with severe features in our population. Methods. Retrospective cohort study. We applied the full‐PIERS model on 130 women with severe early‐onset preeclampsia who were treated at a second‐level hospital in Nuevo León, México. We validated the full‐PIERS model in its ability to discriminate through the AUROC. Results. The full‐PIERS model applied to the data obtained in our study had good discrimination, revealing an AUC of 0.718 (95% CI 0.515–0.921; P = 0.017). A cut‐off of 7.95 was identified as the cut‐off point with the best diagnostic performance, with the highest Youden index, presenting a sensitivity of 54.5% and specificity of 99.2% for the development of complications. Conclusion. The full‐PIERS model can predict adverse maternal outcomes in women admitted to our hospital with severe early‐onset preeclampsia within 48 hours of admission.