Intervention not reported
Adverse events ‐ Miscarriage№ of participants: 304(3 RCTs) · women with subfertility
The intervention showed no clear difference in adverse events ‐ Miscarriage№ of participants: 304(3 RCTs) (low certainty).
1 finding from 1 review
Intervention not reported
Adverse events ‐ Multiple pregnancy · women with subfertility
The review found no eligible studies for this question.
1 finding from 1 review
Intervention not reported
Adverse events ‐ Gastrointestinal disturbances · women with subfertility
The review found no eligible studies for this question.
1 finding from 1 review
Intervention not reported
Adverse events ‐ Ectopic pregnancy Melatonin lower dose versus melatonin higher dose№ of participants: 120(1 RCT) · women with subfertility
1 finding from 1 review
Clinical pregnancy · women with subfertility
Antioxidant(s) may leads to higher clinical pregnancy; antioxidants vs placebo or no treatment/standard… compared with placebo or no treatment/standard treatment (low certainty).
1 finding from 1 review
Adverse events ‐ Miscarriage · women with subfertility
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).
1 finding from 1 review
Adverse event ‐ multiple pregnancy · women with subfertility
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).
1 finding from 1 review
Gastrointestinal adverse events · women with subfertility
Antioxidant(s) showed no clear difference in adverse events ‐ Gastrointestinal disturbances№ of participants:… compared with placebo or no treatment/standard treatment (low certainty).
1 finding from 1 review
Adverse events: ectopic pregnancy · women with subfertility
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).
1 finding from 1 review
Intervention not reported
Live birth; type of antioxidant (natural conceptions and undergoing fertility treatments) ‐ Melatonin lower dose versus melatonin higher dose№ of participants: 140(2 RCTs) · women with subfertility
The intervention showed no clear difference in live birth; type of antioxidant (natural conceptions and undergoing… (low certainty).
1 finding from 1 review
Intervention not reported
Clinical pregnancy; type of antioxidant (natural conceptions and undergoing fertility treatments) ‐ N‐acetylcysteine versus L‐carnitine№ of participants: 164(1 RCT) · women with subfertility
It is very uncertain whether the intervention changes clinical pregnancy; type of antioxidant (natural conceptions and… (very low certainty).
1 finding from 1 review
Intervention not reported
Clinical pregnancy; type of antioxidant (natural conceptions and undergoing fertility treatments) ‐ Melatonin lower dose versus melatonin higher dose№ of participants: 140(2 RCTs) · women with subfertility
The intervention showed no clear difference in clinical pregnancy; type of antioxidant (natural conceptions and… (low certainty).
1 finding from 1 review
Uterine fibroid‐related symptoms (abnormal uterine bleeding, measured at 12 weeks, with the pictorial blood assessment chart (PBAC); lower = better) · women with uterine fibroids
2 findings from 1 review
Adverse events (spotting at 3 and 6 months) · women with uterine fibroids
1 finding from 1 review
Uterine fibroid‐related symptoms (duration of uterine bleeding, measured at 12 weeks; lower = better) · women with uterine fibroids
1 finding from 1 review
Uterine fibroid‐related symptoms (abnormal uterine bleeding, measured at 12 weeks, with the pictorial blood assessment chart (PBAC); lower = better) · women with uterine fibroids
1 finding from 1 review
Fibroid size · women with uterine fibroids
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Adverse events (hot flushes) · women with uterine fibroids
1 finding from 1 review
Haemoglobin level ‐ Haemoglobin level at 12 months Scale from: 0 to 20. · women with uterine fibroids
1 finding from 1 review
Fibroid size · women with uterine fibroids
1 finding from 1 review