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. 2020 Nov 3;2020(11):CD013449. doi: 10.1002/14651858.CD013449.pub2

Summary of findings 7. Myofunctional therapy compared to Standard medical treatment for obstructive sleep apnoea.

Myofunctional therapy compared to standard medical treatment for obstructive sleep apnoea
Patient or population: obstructive sleep apnoea
Setting: Outpatient
Intervention: Myofunctional therapy
Comparison: Standard medical treatment
Outcomes Anticipated absolute effects* (95% CI) Relative effect
(95% CI) № of participants
(studies) Certainty of the evidence
(GRADE) Comments
Risk with Standard medical treatment Risk with Myofunctional therapy
Daytime sleepiness (ESS): change from baseline. Follow‐up: 3 months. The mean daytime sleepiness (ESS): change from baseline. Follow‐up: 3 months was 0.2 MD 6.4 lower
(9.82 lower to 2.98 lower) 26
(1 RCT) ⊕⊕⊝⊝
LOW1 2 May reduce daytime sleepiness.
Scores from 0 to 24. Lower scores denote lower daytime sleepiness. MCID 3 points.
Sleep quality (PSQI): change from baseline. Follow‐up: 3 months. The mean sleep quality (Pittsburgh Sleep Quality Index): change from baseline. Follow‐up: 3 months was ‐1.5 MD 3.1 lower
(5.12 lower to 1.08 lower) 26
(1 RCT) ⊕⊕⊝⊝
LOW1 2 May increase sleep quality.
Scores from 0 to 21. Lower scores denote a healthier sleep quality. MCID 3 points.
Snoring frequency: change from baseline. Follow‐up: 3 months. The mean snoring frequency: change from baseline. Follow‐up: 3 months was 0.1 MD 2.4 lower
(2.8 lower to 2 lower) 26
(1 RCT) ⊕⊕⊝⊝
LOW1 2 May reduce snoring frequency slightly.
Lower scores better. MCID: not available.
Snoring intensity: change from baseline. Follow‐up: 3 months. The mean snoring intensity: change from baseline was 0. Follow‐up: 3 months MD and CI not estimable 26
(1 RCT) ⊕⊕⊝⊝
LOW1 2 May reduce snoring intensity.
Reduction of 3.2 points in the myofunctional therapy group and no change in any patient in the standard medical treatment group.
Lower scores better. MCID: not available.
*The risk in the intervention group (and its 95% confidence interval) is based on the assumed risk in the comparison group and the relative effect of the intervention (and its 95% CI).

AHI: apnoea hypopnoea index; CI: Confidence interval; ESS: Epworth sleepiness scale; MD: mean difference; MCID: Minimal Clinically Important Diference; PSQI: Pittsburgh Sleep Quality Index
GRADE Working Group grades of evidenceHigh certainty: We are very confident that the true effect lies close to that of the estimate of the effect
Moderate certainty: We are moderately confident in the effect estimate: The true effect is likely to be close to the estimate of the effect, but there is a possibility that it is substantially different
Low certainty: Our confidence in the effect estimate is limited: The true effect may be substantially different from the estimate of the effect
Very low certainty: We have very little confidence in the effect estimate: The true effect is likely to be substantially different from the estimate of effect

1 Downgraded one point for unblinded

2 Downgraded one point for imprecision