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. 2004 Jul 19;2004(3):CD003678. doi: 10.1002/14651858.CD003678.pub2

Summary of findings 5. Pre‐surgical compared to Post‐surgical medical therapy for endometriosis surgery.

Pre‐surgical compared to Post‐surgical medical therapy for endometriosis surgery
Patient or population: patients with endometriosis surgery 
 Intervention: Pre‐surgical 
 Comparison: Post‐surgical medical therapy
Outcomes Illustrative comparative risks* (95% CI) Relative effect 
 (95% CI) No of Participants 
 (studies) Quality of the evidence 
 (GRADE) Comments
Assumed risk Corresponding risk
Post‐surgical medical therapy Pre‐surgical
Pain (Dichotomous) ‐ Dysmenorrhoea See comment See comment Not estimable 53 
 (1 study) ⊕⊕⊝⊝ 
 low1,2 There were no events reported in either the intervention or the control group
*The basis for the assumed risk (e.g. the median control group risk across studies) is provided in footnotes. The corresponding risk (and its 95% confidence interval) is based on the assumed risk in the comparison group and the relative effect of the intervention (and its 95% CI). 
 CI: Confidence interval; RR: Risk ratio;
GRADE Working Group grades of evidence 
 High quality: Further research is very unlikely to change our confidence in the estimate of effect. 
 Moderate quality: Further research is likely to have an important impact on our confidence in the estimate of effect and may change the estimate. 
 Low quality: Further research is very likely to have an important impact on our confidence in the estimate of effect and is likely to change the estimate. 
 Very low quality: We are very uncertain about the estimate.

1 The trial did not provide adequate details on allocation concealment or randomisation 
 2 Evidence based on a single trial