Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

199 questions · 221 findings · 20 reviews

No studies found 53 · 24%GRADE not reported 11 · 5%Very low 99 · 44.8%Low 49 · 22.2%Moderate 6 · 2.7%High 3 · 1.4%

Nap interventions (1/2): Nap at night (single nap opportunity) vs no‐nap

Sleepiness during the night shift, postintervention; · Shift workers
5 findings from 1 review
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