Nikolov 2006.

Methods	Not clear. ? Quasi‐randomised trial. 180 women separated into 3 groups of 60.
Participants	180 women (120 used in the analysis in the review) after episiotomy repair. Women who had had spontaneous tearing or anal sphincter repair were not included. Parity, age and method of repair not described.
Interventions	Intervention group: polyglactin 910 sutures (Vicryl‐Rapide) (60 women). Comparison group: polyglycolic acid sutures (60 women). (Women (60) in the third arm of this trial had mixed materials ‐ catgut and silk ‐ and are not included in the analysis.)
Outcomes	Pain (moderate or strong pain in the first 5 days after repair, not clear when measured); partial wound dehiscence (partial skin dehiscence and full dehiscence at 5 days post delivery); redness and swelling.
Notes	The paper was not published in English and translation notes were used for data extraction.
Risk of bias
Bias	Authors' judgement	Support for judgement
Adequate sequence generation?	Unclear risk	No information (bias assessed from translation notes).
Allocation concealment?	Unclear risk	"separated into 3 groups of 60."
Blinding? Women	Unclear risk	Not specified.
Incomplete outcome data addressed? All outcomes	Unclear risk	No missing data apparent.