Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

695 questions · 728 findings · 63 reviews · Headline outcomes only

No studies found 219 · 30.1%GRADE not reported 55 · 7.6%Very low 194 · 26.6%Low 136 · 18.7%Moderate 90 · 12.4%High 34 · 4.7%

Prebiotic vs placebo

Withdrawals due to adverse events · people with histologically confirmed diagnosis of ulcerative colitis in remission

It is very uncertain whether prebiotics changes withdrawals due to adverse events (60 days to 6 months) compared with placebo (very low certainty).

1 finding from 1 review

Inulin and oligofructose 15 g vs inulin and oligofructose 7.5 g daily

Clinical remission · Patients with active mild to moderate ulcerative colitis

It is very uncertain whether inulin and oligofructose 15 g changes clinical remission (9 weeks) compared with inulin and oligofructose 7.5 g daily (very low certainty).

1 finding from 1 review

Inulin and oligofructose 15 g vs inulin and oligofructose 7.5 g daily

Clinical improvement (Mayo score) (9 weeks) · Patients with active mild to moderate ulcerative colitis

It is very uncertain whether inulin and oligofructose 15 g changes clinical improvement (Mayo score) (9 weeks) compared with inulin and oligofructose 7.5 g daily (very low certainty).

1 finding from 1 review

Inulin and oligofructose 15 g vs inulin and oligofructose 7.5 g daily

Total adverse events (9 weeks) · Patients with active mild to moderate ulcerative colitis

It is very uncertain whether inulin and oligofructose 15 g changes total adverse events (9 weeks) compared with inulin and oligofructose 7.5 g daily (very low certainty).

1 finding from 1 review

Exercise vs no treatment

Intensity of disease signs and symptoms1 · people with non‐ulcerated chronic venous insufficiency

It is very uncertain whether physical exercise changes intensity of disease signs and symptoms: VCSS Scale: 0 to 30 (lower… compared with no treatment (very low certainty).

1 finding from 1 review