Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

370 questions · 377 findings · 26 reviews · Gut

No studies found 103 · 27.3%GRADE not reported 11 · 2.9%Very low 99 · 26.3%Low 75 · 19.9%Moderate 67 · 17.8%High 22 · 5.8%

Oral 5‐aminosalicylic acid vs 5‐aminosalicylic acid (5‐ASA) (mesalazine)

Failure to maintain clinical or endoscopic remission · Patients with quiescent ulcerative colitis

Oral 5‐aminosalicylic acid showed no clear difference in failure to maintain clinical or endoscopic remission compared with comparator 5‐aminosalicylic acid formulation (low certainty).

1 finding from 1 review

Oral 5‐aminosalicylic acid vs 5‐aminosalicylic acid (5‐ASA) (mesalazine)

Withdrawals due to adverse events · Patients with quiescent ulcerative colitis

It is very uncertain whether oral 5‐aminosalicylic acid changes withdrawal due to adverse events compared with comparator 5‐aminosalicylic acid formulation (very low certainty).

1 finding from 1 review