Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

3,097 questions · 3,266 findings · 631 reviews

No studies found 430 · 13.2%GRADE not reported 193 · 5.9%Very low 995 · 30.5%Low 904 · 27.7%Moderate 591 · 18.1%High 153 · 4.7%

Relaxation vs usual care

Satisfaction with pain relief · women in labour

It is very uncertain whether relaxation changes satisfaction with pain relief (higher proportion high satisfaction) compared with usual care (very low certainty).

1 finding from 1 review

Anti‐vascular endothelial growth factor therapy vs conventional laser/cryotherapy

Refractive error ‐ very high myopia ‐ at 30 months of age (unit of analysis: eyes) · preterm infants with type 1 ROP

Anti‐vascular endothelial growth factor therapy may leads to lower refractive error ‐ very high myopia ‐ at 30 months of age (unit of… compared with conventional laser/cryotherapy (low certainty).

1 finding from 1 review

Noradrenaline reuptake inhibitors vs placebo

Mental state: significant response or improvement in negative symptoms (PANSS negative subscale, high = worse) ‐ short term (12 weeks) · adults with schizophrenia

It is very uncertain whether noradrenaline reuptake inhibitors changes mental state: significant response or improvement in negative… compared with placebo (very low certainty).

1 finding from 1 review

Noradrenaline reuptake inhibitors vs placebo

Clinical global response: significant response or improvement in global status (CGI‐S, high = worse) ‐ short term (4 weeks) · adults with schizophrenia

It is very uncertain whether noradrenaline reuptake inhibitors changes clinical global response: significant response or improvement in… compared with placebo (very low certainty).

1 finding from 1 review

Serotonin and noradrenaline reuptake inhibitors (SNRI) vs placebo

Participant‐reported sleep problems (scale: 0 to 28; higher scores indicate more sleep problems) · patients with fibromyalgia

Serotonin noradrenaline reuptake inhibitors showed no clear difference in self‐reported sleep problems (0‐100 scale) Higher scores indicate… compared with placebo (low certainty).

1 finding from 1 review

Serotonin and noradrenaline reuptake inhibitors (SNRI) vs placebo

Self‐reported health‐related quality of life (0‐100 scale) Higher scores indicate higher burden of disease (lower quality of life) · patients with fibromyalgia

Serotonin noradrenaline reuptake inhibitors showed no clear difference in self‐reported health‐related quality of life (0‐100 scale) Higher… compared with placebo (low certainty).

1 finding from 1 review

Intervention not reported

Next‐day alertness Participant reports. Scale from: 0 to 10 points; higher scores equalled better outcome; CFB and double‐blind average values included · Patients with insomnia
1 finding from 1 review

Intervention not reported

SF‐36 social function. Domain of SF‐36 considered representative of quality of life: mental health domain largely covered by depression and anxiety above: scale of 0‐100. Higher score indicated improved social function. Mean duration of · people with chronic hip, knee or hip and knee osteoarthritis
1 finding from 1 review