Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

1,304 questions · 1,352 findings · 210 reviews

No studies found 230 · 17%GRADE not reported 163 · 12.1%Very low 269 · 19.9%Low 277 · 20.5%Moderate 291 · 21.5%High 122 · 9%

Studies focused only on enhanced communication, without clarification of values and preferences, vs control

Mental health outcomes · women aged 40 to 75 years at average to moderate risk of breast cancer

Studies focused only on enhanced communication, without… showed no clear difference in mental health outcomes compared with control (high certainty).

1 finding from 1 review

Shared decision‐making (all components) vs control

Knowledge of all the options · women aged 40 to 75 years at average to moderate risk of breast cancer

It is very uncertain whether shared decision‐making (all components) changes knowledge of all the options compared with control (very low certainty).

1 finding from 1 review

Some components of shared decision‐making, including clarification of values and preferences, vs control

Confidence in the decision made · women aged 38 to 71 years at average to moderate risk of breast cancer

It is very uncertain whether some components of shared decision‐making, including clarification… changes confidence in the decision made compared with control (very low certainty).

1 finding from 1 review

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

Withdrawals due to adverse events · Patients with active mild to moderate ulcerative colitis

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

1 finding from 1 review

Prebiotic vs placebo

Withdrawals due to adverse events · people with mild‐to‐moderate disease (Rachmilewitz index) or active disease (SCCAI score of 4 to 10)

It is very uncertain whether prebiotics changes withdrawals due to adverse events (14 days to 2 or 3 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