Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

191 questions · 225 findings · 21 reviews · Gynaecological, Neuro-oncology and Orphan Cancer

No studies found 50 · 22.2%GRADE not reported 8 · 3.6%Very low 62 · 27.6%Low 55 · 24.4%Moderate 38 · 16.9%High 12 · 5.3%

Probiotics vs placebo

Median (mean) time to use of rescue medication · participants with cancer treated with radiotherapy (with or without chemotherapy)
2 findings from 1 review

Probiotics vs placebo

Requiring rescue medication for diarrhoea · participants with cancer treated with radiotherapy (with or without chemotherapy)

Probiotics showed no clear difference in requiring rescue medication for diarrhoea compared with placebo (moderate certainty).

2 findings from 1 review

Probiotics vs placebo

Adverse events · participants with cancer treated with radiotherapy (with or without chemotherapy)
2 findings from 1 review

Probiotics vs placebo

All‐cause mortality · participants with cancer treated with radiotherapy (with or without chemotherapy)
2 findings from 1 review