Example: FVL and preeclampsia
Meta‐analysis of case control studies
Pooled OR 2.19 (95%CI 1.46‐3.27)
Robertson, Br J Haematol 2006
No risk increase in prospective cohort studies Factor V Leiden and preeclampsia
Pooled OR 1.23 (95%CI 0.89‐1.70)
Rodger, Plos Med 2010, JTH 2014
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