It is very uncertain whether antioxidants changes adverse events ‐ Miscarriage compared with placebo or no treatment (very low certainty).
Antioxidants may leads to higher adverse events ‐ Gastrointestinal compared with placebo or no treatment (low certainty).
The review found no eligible studies for this question.
The review found no eligible studies for this question.
The intervention showed no clear difference in adverse events ‐ Miscarriage№ of participants: 304(3 RCTs) (low certainty).
Antioxidant(s) showed no clear difference in adverse events ‐ Miscarriage№ of participants: 3229(24 RCTs) compared with placebo or no treatment/standard treatment (low certainty).
Antioxidant(s) showed no clear difference in adverse events ‐ Ectopic pregnancy№ of participants: 404(4 RCTs) compared with placebo or no treatment/standard treatment (low certainty).
Antioxidant(s) showed no clear difference in adverse events ‐ Multiple pregnancy№ of participants: 1886(9 RCTs) compared with placebo or no treatment/standard treatment (low certainty).
Antioxidant(s) showed no clear difference in adverse events ‐ Gastrointestinal disturbances№ of participants:… compared with placebo or no treatment/standard treatment (low certainty).