Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

2,087 questions · 2,360 findings · 390 reviews

No studies found 224 · 9.5%GRADE not reported 603 · 25.6%Very low 555 · 23.5%Low 548 · 23.2%Moderate 312 · 13.2%High 118 · 5%

Nd:YAG laser vs No anticaries intervention (untreated enamel)

Enamel acid resistance (cross-sectional microhardness) · Human enamel in pits and fissures (in situ / ex vivo)

Nd:YAG laser increased enamel acid resistance versus untreated enamel in pits and fissures (ungraded, 1 ex-vivo study, no pooled estimate).

1 finding from 1 review

Mutans streptococci present in oral samples at baseline vs Mutans streptococci absent in oral samples at baseline

Development of any (cavitated or non-cavitated) carious lesion · Children younger than 6 years with caries-free primary dentition (no cavitated or non-cavitated lesions at baseline)

Preschool children with mutans streptococci at baseline probably have about four times higher odds of developing early childhood caries (OR 4.13; moderate certainty).

10 findings from 1 review
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NIPPV vs NCPAP

Need for endotracheal tube ventilation · )

Nasal intermittent positive pressure ventilation (NIPPV) probably leads to lower need for endotracheal tube ventilation compared with nasal continuous positive airway pressure (NCPAP) (by population) (moderate certainty).

1 finding from 1 review

NIPPV vs NCPAP

Severe (grade 3 or greater) intraventricular hemorrhage (IVH) on cranial ultrasound ‐ not reported · )

Nasal intermittent positive pressure ventilation (NIPPV) showed no clear difference in severe intraventricular hemorrhage (grade III/IV) compared with nasal continuous positive airway pressure (NCPAP) (by population) (low certainty).

1 finding from 1 review

Intervention not reported

Breast cancer stage at the time of presentation: defined as the proportion of women with breast cancer diagnosed at late stage (stage III, IV) Time of outcome assessment: 3 years to 20 years Method of measurement: CBE · health workers

The intervention may leads to lower breast cancer stage at the time of presentation: defined as the… (low certainty).

1 finding from 1 review