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What do systematic reviews say?

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Evidence found and GRADE certainty

6 questions · 6 findings · 1 reviews

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No studies found 1 · 16.7%GRADE not reported 0 · 0%Very low 2 · 33.3%Low 1 · 16.7%Moderate 2 · 33.3%High 0 · 0%

Tramadol vs other opioids

Outcomesa · patients with osteoarthritis

The review found no eligible studies for this question.

1 finding from 1 review

Tramadol vs other opioids

Physical function · patients with osteoarthritis

Tramadol alone probably leads to higher physical function compared with other opioids (moderate certainty).

1 finding from 1 review

Tramadol vs other opioids

Number of participants reporting an adverse event · patients with osteoarthritis

It is very uncertain whether tramadol alone changes number of participants experiencing any adverse event compared with other opioids (very low certainty).

1 finding from 1 review

Tramadol vs other opioids

Withdrawals due to adverse events · patients with osteoarthritis

Tramadol alone may leads to higher number of participants who withdrew due to adverse events compared with other opioids (low certainty).

1 finding from 1 review

Tramadol vs other opioids

Number of participants experiencing any serious adverse events · patients with osteoarthritis

It is very uncertain whether tramadol alone changes number of participants experiencing any serious adverse events compared with other opioids (very low certainty).

1 finding from 1 review