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. 2014 Aug 27;2014(8):CD006618. doi: 10.1002/14651858.CD006618.pub3

Summary of findings for the main comparison. Methotrexate compared to placebo for induction of remission in ulcerative colitis.

Methotrexate compared to Placebo for induction of remission in ulcerative colitis
Patient or population: patients with induction of remission in ulcerative colitis
 Settings: Outpatient 
 Intervention: Methotrexate
 Comparison: Placebo
Outcomes Illustrative comparative risks* (95% CI) Relative effect
 (95% CI) No of Participants
 (studies) Quality of the evidence
 (GRADE) Comments
Assumed risk Corresponding risk
Placebo Methotrexate
Remission and complete withdrawal from steroids 
 Follow‐up: mean 36 weeks 486 per 10001 467 per 1000 
 (282 to 774) RR 0.96 
 (0.58 to 1.59) 67
 (1 study) ⊕⊕⊝⊝
 low2  
*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 Control group risk comes from control arm of study
 2 Very sparse data (32 events)