Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

157 questions · 158 findings · 44 reviews · Headline outcomes only

No studies found 25 · 15.8%GRADE not reported 7 · 4.4%Very low 40 · 25.3%Low 50 · 31.6%Moderate 33 · 20.9%High 3 · 1.9%

Gamma‐globulin vs control (no preparation or saline preparation)

Subgroup: rubella cases Estimated dose 0.2 to 0.5 ml/lb11 Serology +/‐ virus isolation +/‐ clinical signs · susceptible people exposed to rubella

Gamma‐globulin showed no clear difference in subgroup: rubella cases Estimated dose 0.2 to 0.5 ml/lb11 Serology… compared with control (saline or no treatment) (moderate certainty).

1 finding from 1 review

Intervention not reported

Quality of life (dyspnoea) Measured on the CRQ, the output is a number from 0 to 7, where higher on the scale is better. MID is 0.5. · adults with COPD who had exertional dyspnoea but did not fulfil the criteria for long‐term oxygen treatment

The intervention probably leads to higher quality of life (dyspnoea) Measured on the CRQ, the output is a… (moderate certainty).

1 finding from 1 review

Diacerein vs placebo

Radiographic progression—minimum joint space width (decreased over 0.50 mm during the study period) · patients with osteoarthritis

Diacerein may leads to lower radiographic progression—minimum joint space width (decreased over… compared with placebo (low certainty).

1 finding from 1 review

Laser‐assisted in‐situ keratomileusis (LASIK) vs photorefractive keratectomy (PRK)

Eyes within ± 0.5 D of target refraction · patients with myopia

Laser‐assisted in‐situ keratomileusis (LASIK) showed no clear difference in within 0.50 D of target refraction compared with photorefractive keratectomy (PRK) (low certainty).

1 finding from 1 review