Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

920 questions · 964 findings · 153 reviews

No studies found 215 · 22.3%GRADE not reported 85 · 8.8%Very low 241 · 25%Low 260 · 27%Moderate 135 · 14%High 28 · 2.9%

Higher BMI (continuous / per-unit increment) vs Lower BMI (continuous reference / per 1 kg/m2 decrement)

Dental caries in children · Children (approx. 4-18 years)

Pooling studies that used BMI as a continuous variable showed no significant association between per-unit BMI and childhood dental caries (OR 1.01, 95% CI 0.99 to 1.03; I2=3.5%); ungraded.

3 findings from 1 review

Continuous chest compression alone vs interrupted chest compression plus artificial ventilation

Survival to hospital discharge · Patients with non‐trauma related out‐of‐hospital cardiac arrest

Continuous chest compression alone leads to higher survival to hospital discharge compared with interrupted chest compression plus artificial ventilation (high certainty).

1 finding from 1 review

Continuous chest compression alone vs interrupted chest compression plus artificial ventilation

Survival to hospital admission · Patients with non‐trauma related out‐of‐hospital cardiac arrest

Continuous chest compression alone showed no clear difference in survival to hospital admission compared with interrupted chest compression plus artificial ventilation (moderate certainty).

1 finding from 1 review

Continuous chest compression alone vs interrupted chest compression plus artificial ventilation

Neurological function at hospital discharge, measured by cerebral performance category (CPC) · Patients with non‐trauma related out‐of‐hospital cardiac arrest

Continuous chest compression alone showed no clear difference in neurological outcomes at hospital discharge Measured as 'good' or… compared with interrupted chest compression plus artificial ventilation (moderate certainty).

1 finding from 1 review

Continuous infusion vs bolus administration

Pain · postoperative pain in neonates

It is very uncertain whether continuous infusion changes pain compared with bolus administration (very low certainty).

2 findings from 1 review