Rostig 2003.

Methods	Randomised, cross‐over study. Statistical analysis methods not reported.
Participants	N = 30. No baseline details provided. Participants were on long‐term CPAP for OSA, but were using it for less than 4 hours per night.
Interventions	Auto‐CPAP (AutoSet T) versus fixed pressure CPAP Study duration: 2 x 4‐week treatment periods
Outcomes	Machine usage (average hours used) Treatment pressure Patient preference AHI
Funding & conflicts of interest statements	Not available (conference abstract)
Notes	—
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	Information not available
Allocation concealment (selection bias)	Unclear risk	Information not available
Blinding of participants and personnel (performance bias) Machine usage, symptoms, quality of life, withdrawal, adverse effects	Unclear risk	Information not available
Blinding of participants and personnel (performance bias) AHI, blood pressure, treatment pressure	Unclear risk	Information not available
Blinding of outcome assessment (detection bias) Machine usage, symptoms, quality of life, withdrawal, adverse effects	Unclear risk	Information not available
Blinding of outcome assessment (detection bias) AHI, blood pressure, treatment pressure	Unclear risk	Information not available
Incomplete outcome data (attrition bias) All outcomes	Unclear risk	Information not available
Selective reporting (reporting bias)	Unclear risk	Information not available
Other bias	Unclear risk	Information not available