Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

117 questions · 119 findings · 20 reviews · Breast Cancer

No studies found 11 · 9.2%GRADE not reported 0 · 0%Very low 49 · 41.2%Low 42 · 35.3%Moderate 11 · 9.2%High 6 · 5%

Summary of findings table ‐ Systemic therapy vs control

Change in grip strength · women with early breast cancer

Summary of findings table ‐ Systemic therapy showed no clear difference in change in grip strength from baseline to end of intervention compared with control (low certainty).

1 finding from 1 review

Summary of findings table ‐ Systemic therapy vs control

Effect on discontinuation of aromatase inhibitors (AI) · women with early breast cancer

Summary of findings table ‐ Systemic therapy showed no clear difference in effect on discontinuation of aromatase inhibitors (AI) compared with control (low certainty).

1 finding from 1 review

Intervention not reported

Incidence of a secondary primary breast cancer (e.g. in the contralateral breast) ‐ endocrine therapies not separated (exemestane (AI)/tamoxifen (SERM)/unknown) · women receiving endocrine therapy (selective oestrogen receptor modulator or aromatase inhibitor)
1 finding from 1 review