Maternal outcomes Number of studies Number of patients Proportion of event 95% CI
Maternal severe infection
Treated group 2 916 4% 0.03-0.05
Disease matched 1 453 1% 0.00-0.02
Disease free 0 - - -
Miscarriage
Treated group 16 3348 12% 0.09-0.15
Disease matched 4 3424 6% 0.01-0.11
Disease free 4 3641 11% 0.03-0.19
Pre eclampsia
Treated group 5 1175 1% 0.01-0.02
Disease matched 2 1017 1% 0.00-0.01
Disease free 0 - - -