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What do systematic reviews say?

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Evidence found and GRADE certainty

60 questions · 62 findings · 26 reviews · Pain, Palliative and Supportive Care

No studies found 32 · 51.6%GRADE not reported 1 · 1.6%Very low 14 · 22.6%Low 13 · 21%Moderate 2 · 3.2%High 0 · 0%

CR oxycodone vs CR morphine

Quality of life · adults with cancer‐related pain

It is very uncertain whether CR oxycodone changes quality of life compared with CR morphine (very low certainty).

1 finding from 1 review

Hydromorphone vs morphine

Quality of life · people with moderate to severe cancer pain

The review found no eligible studies for this question.

1 finding from 1 review

Hydromorphone vs fentanyl

Quality of life · people with moderate to severe cancer pain

The review found no eligible studies for this question.

1 finding from 1 review

Hydromorphone vs oxycodone

Quality of life · people with moderate to severe cancer pain

The review found no eligible studies for this question.

1 finding from 1 review