Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

126 questions · 128 findings · 17 reviews · Breast Cancer

No studies found 5 · 3.9%GRADE not reported 5 · 3.9%Very low 20 · 15.6%Low 21 · 16.4%Moderate 36 · 28.1%High 41 · 32%

Summary of findings table ‐ Postmastectomy radiotherapy (PMRT) vs no PMRT

Overall survival (OS) · women with breast cancer and one to three positive lymph nodes

Summary of findings table ‐ Postmastectomy radiotherapy (PMRT) probably leads to lower overall survival (OS) compared with no PMRT (moderate certainty).

1 finding from 1 review