Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

480 questions · 484 findings · 52 reviews · Musculoskeletal

No studies found 114 · 23.6%GRADE not reported 24 · 5%Very low 33 · 6.8%Low 145 · 30%Moderate 116 · 24%High 52 · 10.7%

Oral or transdermal opioids vs placebo

Adverse events as N of participants with at least one adverse event objective · Patients with osteoarthritis of the knee or hip

Oral or transdermal opioids probably leads to higher number of participants experiencing any adverse event (median compared with placebo (moderate certainty).

1 finding from 1 review

Sulfasalazine vs placebo

Mean improvement in Bath ankylosing spondylitis function index (BASFI) ‐ not reported · Patients with ankylosing spondylitis

The review found no eligible studies for this question.

1 finding from 1 review

Sulfasalazine vs placebo

Mean improvement in Bath ankylosing spondylitis metrology index (BASMI) ‐ not reported · Patients with ankylosing spondylitis

The review found no eligible studies for this question.

1 finding from 1 review

Sulfasalazine vs placebo

Withdrawals due to adverse events · Patients with ankylosing spondylitis

Sulfasalazine probably leads to higher total number of withdrawals due to adverse events compared with placebo (moderate certainty).

1 finding from 1 review

Sulfasalazine vs placebo

Serious adverse events · Patients with ankylosing spondylitis

Sulfasalazine showed no clear difference in serious adverse events compared with placebo (moderate certainty).

1 finding from 1 review