| Methods |
Quasi RCT with 3 comparisons. Unblinded. Data extracted from 2 arms |
| Participants |
100 participants. 82 men, 18 women. Mean age 23.7 years (SD 5.2). Only data for 50 participants included. New sinus presentation only. |
| Interventions |
Open healing (excision and open healing) vs. midline closure (primary midline closure). |
| Outcomes |
Recurrence. |
| Notes |
Although 100 participants studied, only used open v. closed data for sub‐set of 50 randomised with new presentation. Follow up 100% at 12 months. |
| Risk of bias |
| Bias |
Authors' judgement |
Support for judgement |
| Adequate sequence generation? |
Unclear risk |
Quote: "Randomized prospective study". |
| Allocation concealment? |
Unclear risk |
Not reported. |
| Incomplete outcome data addressed?
All outcomes |
Unclear risk |
No information on exclusions, attrition, or missing data. |
| Free of selective reporting? |
Low risk |
|
| Free of other bias? |
High risk |
Groups were not comparable at baseline with respect to recurrence status. |
