Findings

What do systematic reviews say?

5 questions · 5 findings · 1 reviews · Fertility Regulation

No studies found 0 · 0%GRADE not reported 0 · 0%Very low 0 · 0%Low 3 · 60%Moderate 1 · 20%High 1 · 20%

Menses ‐ early · women seeking emergency contraception

Levonorgestrel showed no clear difference in menses ‐ Early compared with yuzpe (low certainty).

1 finding from 1 review

Interventions for emergency contraception 2019 · Cochrane Headline outcomes only
RR 1.15 [0.86, 1.52]
2 studies · 1310 participants
Low

Menses ‐ early · women seeking emergency contraception

Single‐dose levonorgestrel leads to lower menses ‐ early compared with split‐dose levonorgestrel (high certainty).

1 finding from 1 review

Interventions for emergency contraception 2019 · Cochrane Headline outcomes only
RR 0.67 [0.54, 0.82]
1 study · 1118 participants
High

Menses ‐ early · women seeking emergency contraception

Mid‐dose mifepristone (25 mg‐50 mg) showed no clear difference in menses ‐ early compared with levonorgestrel 1.5 mg (low certainty).

1 finding from 1 review

Interventions for emergency contraception 2019 · Cochrane Headline outcomes only
RR 0.72 [0.5, 1.03]
7 studies · 1324 participants
Low

Menses ‐ early · women seeking emergency contraception

Low‐dose mifepristone (< 25 mg) may leads to lower menses ‐ early compared with levonorgestrel 1.5 mg (low certainty).

1 finding from 1 review

Interventions for emergency contraception 2019 · Cochrane Headline outcomes only
RR 0.45 [0.35, 0.59]
5 studies · 1800 participants
Low

Menses ‐ early · women seeking emergency contraception

Ulipristal acetate (all doses) probably leads to lower menses ‐ early compared with levonorgestrel (moderate certainty).

1 finding from 1 review

Interventions for emergency contraception 2019 · Cochrane Headline outcomes only
RR 0.43 [0.37, 0.5]
2 studies · 3593 participants
Moderate