Findings

What do systematic reviews say?

24 questions · 24 findings · 9 reviews

Sort:Best matchNewest Highest certainty Download CSV

No studies found 4 · 16.7%GRADE not reported 0 · 0%Very low 8 · 33.3%Low 11 · 45.8%Moderate 1 · 4.2%High 0 · 0%

Antioxidants vs Placebo, no intervention or usual care (with or without placebo)

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

Antioxidants for female subfertility 2020 · Cochrane Headline outcomes only
OR 1.4 [0.27, 7.2]
Studies not reported
Low

Antioxidants vs Placebo, no intervention or usual care (with or without placebo)

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

Antioxidants for female subfertility 2020 · Cochrane Headline outcomes only
OR 1 [0.63, 1.56]
Studies not reported
Low

Antioxidants vs Placebo, no intervention or usual care (with or without placebo)

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

Antioxidants for female subfertility 2020 · Cochrane Headline outcomes only
OR 1.55 [0.47, 5.1]
Studies not reported
Low

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

Antioxidants for female subfertility 2020 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
Very low