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. Author manuscript; available in PMC: 2020 Feb 1.
Published in final edited form as: Gastroenterology. 2018 Dec 18;156(3):769–808.e29. doi: 10.1053/j.gastro.2018.12.008

Table 15.

GRADE Evidence Profile comparing rectal mesalamine with placebo for induction and maintenance of remission in patients with mild-moderate ulcerative proctosigmoiditis

RECTAL MESALAMINE ENEMAS COMPARED TO PLACEBO FOR MILD-MODERATE ULCERATIVE PROCTOSIGMOIDITIS

Outcomes Anticipated absolute effects* (95% CI) Relative effect (95% CI) Absolute effect № of participants (studies) Quality of the evidence (GRADE)
Risk with placebo Risk with rectal mesalamine enemas
Failure to induce remission 732 per 1,000 366 per 1,000 (256 to 534) RR 0.50 (0.35 to 0.73) 366 fewer per 1,000 (from 198 fewer to 476 fewer) 342 (4 RCTs) ⨁⨁⨁◯1 MODERATE

Failure to maintain remission 846 per 1,000 254 per 1,000 (93 to 685) RR 0.30 (0.11 to 0.81) 592 fewer per 1,000 (from 161 fewer to 753 fewer) 25 (1 RCT) ⨁⨁⨁◯1 MODERATE

GRADE Working Group grades of evidence
High quality: We are very confident that the true effect lies close to that of the estimate of the effect
Moderate quality: We are moderately confident in the effect estimate: The true effect is likely to be close to the estimate of the effect, but there is a possibility that it is substantially different
Low quality: Our confidence in the effect estimate is limited: The true effect may be substantially different from the estimate of the effect
Very low quality: We have very little confidence in the effect estimate: The true effect is likely to be substantially different from the estimate of effect
1

Rated down for imprecision since optimal information size not met (<200 events)

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