| Methods |
Women randomly allocated to 2 groups. Method of randomisation not reported |
| Participants |
102 women attending in a Chinese traditional medicine hospital, Tonglu, Zhejiang, China. Women had regular menstrual periods and a single act of unprotected intercourse within 72 h of attending the clinic |
| Interventions |
Mife 25 mg single dose vs LNG 0.75 mg 2‐dose regimen |
| Outcomes |
Observed number of pregnancies, side effects and changes in menstrual pattern |
| Notes |
Observed pregnancy/total number of women: Mife 1/57; LNG 2/45 -
Side effects:
Mife: nausea 4/57; dizziness and headache 3/57; breast tenderness 4/57 LNG: nausea 4/45; dizziness and headache 4/45; breast tenderness 5/45
-
Changes in menstrual pattern:
Early: Mife 6/56; LNG 5/43 Delay: Mife 15/56; LNG 10/43 Spotting: Mife 3/56; LNG 11/43
|
| Risk of bias |
| Bias |
Authors' judgement |
Support for judgement |
| Random sequence generation (selection bias) |
Unclear risk |
Mentioned randomisation but description not adequate |
| Allocation concealment (selection bias) |
Unclear risk |
Method of allocation concealment not mentioned |
| Blinding (performance bias and detection bias)
All outcomes |
Unclear risk |
Not mentioned |
| Incomplete outcome data (attrition bias)
All outcomes |
Unclear risk |
No mention of post‐randomisation exclusion and loss to follow‐up |
| Selective reporting (reporting bias) |
Low risk |
Reported planned outcomes |
| Other bias |
Low risk |
None detected |
