Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

1,230 questions · 1,303 findings · 326 reviews · Headline outcomes only

No studies found 73 · 5.6%GRADE not reported 21 · 1.6%Very low 497 · 38.1%Low 403 · 30.9%Moderate 245 · 18.8%High 64 · 4.9%

Intervention not reported

Global quality of life score Multiple measures used. WHO‐Five‐Wellbeing Index (Ledderer 2013) FACT‐G total score (Northouse 2007). Additional study (reported in comments section): SF20 subscales (Blanchard 1996). Higher scores indicate better QoL · informal caregivers of people affected by cancer
1 finding from 1 review

Intervention not reported

Any depression Multiple measures used. CES‐D (Blanchard 1996;McCorkle 2007). POMS Depression subscale (Bultz 2000). HADS‐D (Nicolaisen 2018; Robertson 2016). Higher scores indicate higher levels of depression. Folllow‐up: Three to six months post‐... · informal caregivers of people affected by cancer
1 finding from 1 review

Intervention not reported

Any anxiety STAI‐S (Blanchard 1996). POMS Anxiety subscale (Bultz 2000; Campbell 2007). HADS‐A (Nicolaisen 2018; Robertson 2016). Additional study (reported in comments section): SCL‐90‐R Anxiety subscale (Heinrich 1985). Higher scores indicate hi... · informal caregivers of people affected by cancer
1 finding from 1 review

Intervention not reported

Any anxiety STAI‐S (Blanchard 1996). POMS Anxiety subscale (Bultz 2000). HADS‐A (Nicolaisen 2018; Robertson 2016). Higher scores indicate higher levels of anxiety. · informal caregivers of people affected by cancer
1 finding from 1 review

Intervention not reported

Caregiver physical health status Studies (reported in comments section): Multilevel Assessment Instrument Total Score (Budin 2008).*** SF12 Physcial Component Summary Score (Northouse 2007). Higher scores indicate higher levels of physical health ... · informal caregivers of people affected by cancer

The review found no eligible studies for this question.

1 finding from 1 review

Training vs no intervention

General well‐being
4 findings from 1 review
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