Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

3,372 questions · 3,874 findings · 666 reviews

No studies found 431 · 11.1%GRADE not reported 783 · 20.2%Very low 995 · 25.7%Low 909 · 23.5%Moderate 596 · 15.4%High 160 · 4.1%

Probiotics vs other active intervention

Grade ≥ 3 diarrhoea · participants with cancer treated with radiotherapy (with or without chemotherapy)

Probiotics may leads to lower severity of diarrhoea: grade 3 or higher compared with other active treatment (low certainty).

1 finding from 1 review

Intervention not reported

Communication and language skills: expressive language Measured by: standardized measures of expressive language (higher scores indicate better expressive language skills) · patients with young children (less than six years old) with autism spectrum disorders (ASD)
1 finding from 1 review

Intervention not reported

Communication and language skills: receptive language Measured by: standardized measures of receptive language (higher scores indicate better receptive language skills) · patients with young children (less than six years old) with autism spectrum disorders (ASD)
1 finding from 1 review

Fatty acid vs other topical intervention or standard care

Proportion of participants developing a new pressure ulcer · individuals at risk of pressure ulcer development

Fatty acid showed no clear difference in pressure ulcer incidence: fatty acid vs olive oil (high‐quality… compared with other topical intervention or standard care (low certainty).

1 finding from 1 review

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