Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

864 questions · 895 findings · 140 reviews · Headline outcomes only

No studies found 202 · 22.6%GRADE not reported 53 · 5.9%Very low 227 · 25.4%Low 254 · 28.4%Moderate 131 · 14.6%High 28 · 3.1%

Bi‐PAP vs fixed CPAP

Withdrawals (parallel group trials/first arm cross‐over trials) · adults with a diagnosis of sleep apnoea

Bi‐PAP showed no clear difference in withdrawals (parallel group trials/first arm cross‐over trials) compared with fixed CPAP (low certainty).

1 finding from 1 review