Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

1,497 questions · 1,590 findings · 129 reviews · Gynaecological, Neuro-oncology and Orphan Cancer

No studies found 281 · 17.7%GRADE not reported 74 · 4.7%Very low 410 · 25.8%Low 420 · 26.4%Moderate 280 · 17.6%High 125 · 7.9%

Probiotics vs other active intervention

Grade ≥ 3 diarrhoea · participants with cancer treated with radiotherapy (with or without chemotherapy)

Probiotics may leads to lower severity of diarrhoea: grade 3 or higher compared with other active treatment (low certainty).

1 finding from 1 review

Probiotics vs other active intervention

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

It is very uncertain whether probiotics changes requiring rescue medication for diarrhoea compared with other active treatment (very low certainty).

1 finding from 1 review

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

Influenza vaccine vs no vaccine

All‐cause mortality, solid and haematological malignancies · immunosuppressed adults with cancer

It is very uncertain whether influenza vaccine changes all‐cause mortality, solid and haematological malignancies compared with no vaccine (very low certainty).

1 finding from 1 review