Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

4,410 questions · 8,901 findings · 1,091 reviews

No studies found 1,687 · 19%GRADE not reported 1,469 · 16.5%Very low 1,969 · 22.1%Low 2,060 · 23.1%Moderate 1,302 · 14.6%High 414 · 4.7%

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Slow vs faster rates of enteral feed advancement

Necrotising enterocolitis · very preterm or very low birth weight infants

Slow showed no clear difference in necrotising enterocolitis before hospital discharge compared with faster rates of enteral feed advancement (moderate certainty).

1 finding from 1 review

Slow vs faster rates of enteral feed advancement

Mortality before hospital discharge · very preterm or very low birth weight infants

Slow showed no clear difference in mortality before hospital discharge compared with faster rates of enteral feed advancement (moderate certainty).

1 finding from 1 review

Slow vs faster rates of enteral feed advancement

Invasive infection (before hospital discharge) · very preterm or very low birth weight infants

Slow showed no clear difference in invasive infection before hospital discharge compared with faster rates of enteral feed advancement (low certainty).

1 finding from 1 review

Upper clear plastic retainer + lower fixed canine-to-canine retainer vs Upper clear plastic retainer + lower interproximal reduction (adjunctive), no lower retainer

Stability: Little's Irregularity Index (lower arch) · People who had received fixed appliance orthodontic treatment

Upper clear plastic retainer + lower fixed canine-to-canine retainer showed no clear difference in stability: Little's Irregularity Index (lower arch) compared with upper clear plastic retainer + lower interproximal reduction…; GRADE not reported.

1 finding from 1 review

Late (seven days or more following birth) higher vs lower sodium intake

Mortality Mortality at latest · preterm or low birth weight infants

It is very uncertain whether late (seven days or more following birth) higher changes mortality (latest time reported up to hospital discharge) compared with lower sodium intake (very low certainty).

1 finding from 1 review