Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

4,918 questions · 5,537 findings · 1,803 reviews

No studies found 1,309 · 23.6%GRADE not reported 440 · 7.9%Very low 1,560 · 28.2%Low 1,292 · 23.3%Moderate 751 · 13.6%High 185 · 3.3%

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Gemcitabine vs BCG

Adverse events grade 3 to 5 Range of · participants with recurrent (1‐course BCG failure) high‐risk non‐muscle invasive bladder cancer (49 men, 31 women)Country: Italy

It is very uncertain whether gemcitabine changes grade III–V adverse events compared with BCG (very low certainty).

1 finding from 1 review

Carisbamate vs placebo

Drowsiness/somnolence (Event rate during treatment, length of treatment varied across trials) · people with drug‐resistant focal epilepsy

Carisbamate may leads to higher adverse events: somnolence compared with placebo (low certainty).

1 finding from 1 review

Sclerotherapy vs placebo

Adverse events ‐ matting ( · people with telangiectasias and reticular veins

Sclerotherapy probably leads to higher adverse events ‐ matting ( compared with placebo (moderate certainty).

1 finding from 1 review

Sclerotherapy (hypertonic glucose plus polidocanol) vs sclerotherapy (hypertonic glucose)

Adverse events ‐ matting ( · people with telangiectasias and reticular veins

Sclerotherapy (hypertonic glucose plus polidocanol) showed no clear difference in adverse events ‐ matting ( compared with sclerotherapy (hypertonic glucose) (moderate certainty).

1 finding from 1 review