Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

4,860 questions · 64,864 findings · 4,913 reviews · Headline outcomes only

No studies found 13,869 · 21.4%GRADE not reported 3,491 · 5.4%Very low 16,300 · 25.1%Low 17,338 · 26.7%Moderate 10,900 · 16.8%High 2,966 · 4.6%

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Skin‐sparing mastectomy vs conventional mastectomy

Overall survival,assessed as time to any death · people with a diagnosis of ductal carcinoma in situ (DCIS) or invasive breast cancer

It is very uncertain whether skin‐sparing mastectomy changes overall survival,assessed as time to any death compared with conventional mastectomy (very low certainty).

1 finding from 1 review

Skin‐sparing mastectomy vs conventional mastectomy

Overall complications,assessed using the number of participants with at least one local or systemic complication · people with a diagnosis of ductal carcinoma in situ (DCIS) or invasive breast cancer

It is very uncertain whether skin‐sparing mastectomy changes overall complications,assessed using the number of participants with… compared with conventional mastectomy (very low certainty).

1 finding from 1 review

Selective serotonin reuptake inhibitors vs tricyclic antidepressants (TCAs)

Efficacy as a dichotomous outcome · patients with cancer and depression

It is very uncertain whether selective serotonin reuptake inhibitors (SSRIs) changes efficacy as a dichotomous outcome compared with tricyclic antidepressants (TCAs) (very low certainty).

1 finding from 1 review

Selective serotonin reuptake inhibitors vs tricyclic antidepressants (TCAs)

Acceptability ‐ total dropouts · patients with cancer and depression

It is very uncertain whether selective serotonin reuptake inhibitors (SSRIs) changes dropouts due to any cause (acceptability) compared with tricyclic antidepressants (TCAs) (very low certainty).

1 finding from 1 review