Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

3,584 questions · 3,695 findings · 567 reviews

No studies found 784 · 21.2%GRADE not reported 308 · 8.3%Very low 1,036 · 28%Low 971 · 26.3%Moderate 440 · 11.9%High 156 · 4.2%

Intervention not reported

Cranial ultrasound abnormalities ‒intraventricular haemorrhage grade 3 to 4 · infants below 33 weeks of postmenstrual age who required resuscitation in the delivery room

It is very uncertain whether the intervention changes cranial ultrasound abnormalities ‒intraventricular haemorrhage grade… (very low certainty).

1 finding from 1 review

Use of initial sustained inflation vs standard inflations

Intraventricular haemorrhage, Papile grade 3/4 · preterm infants resuscitated by PPV at birth

Use of initial sustained inflation showed no clear difference in cranial ultrasound abnormalities ‒Intraventricular haemorrhage grade… compared with standard inflations (low certainty).

1 finding from 1 review

Heparin plus aspirin vs aspirin

Intrauterine growth restriction · women with persistent antiphospholipid antibodies and recurrent pregnancy loss

It is very uncertain whether heparin plus aspirin changes intrauterine growth restriction compared with aspirin (very low certainty).

1 finding from 1 review

Cervical cerclage in combination with antibiotics and tocolytics vs cervical cerclage

Serious neonatal morbidity

It is very uncertain whether cervical cerclage in combination with antibiotics and tocolytics changes serious neonatal morbidity (Reported in Miller 2014 as 'composite… compared with cervical cerclage alone (very low certainty).

1 finding from 1 review

Laser‐assisted in‐situ keratomileusis (LASIK) with a mechanical microkeratome vs LASIK with a femtosecond laser

Mean refractive error expressed as mean spherical equivalent post‐treatment. ‐ 12 months · adults (18 years) with more than 0.5 diopters of myopia or myopic astigmatism
1 finding from 1 review

Vitamin D given to lactating mothers vs placebo or no treatment

Nutritional rickets ‐ radiological · term breastfed infants to prevent vitamin D deficiency and improve bone health

It is very uncertain whether vitamin D given to lactating mothers changes nutritional rickets ‐ radiological compared with placebo or no treatment (very low certainty).

1 finding from 1 review