Placental growth factor for pre‐eclampsia screening before 11 weeks' gestation

The data that support the findings of this study are available from the corresponding author upon reasonable request. Table S1 Database search strategies. Table S2 Sociodemographic and clinical characteristics of patients with placental growth factor sampling < 11 weeks included in each study. Table S3 Influence of individual studies on pooled detection of preterm pre-eclampsia when adding placental growth factor sampled < 11 weeks. Appendix S1 Full methodology. Figure S1 PRISMA 2020 flowchart summarizing inclusion of studies. Figure S2 Methodological quality assessment. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.