Table 1

Summary of eligible trials

TrialLocationAccrual periodInclusion criteriaInterventionNo. of patients randomisedLength of follow-upBP readings used
ActiveControl
Barbé et al10Spain1999–2000AHI≥30
ESS≤10
CPAPSham-CPAP556 weeksOffice
Robinson et al13Oxford, UK2002–2004ODI>10
ESS<10
Hypertensive
Therapeutic CPAPSham-CPAP351 monthDaytime
Barbé et al9Spain2004–2006Age>18 and <70
AHI≥20
ESS≤10
CPAP‘Conservative’ (Standard care)725Median 4 yearsOffice
Craig et al12UK and Canada2006–2009ODI>7.5
Minimally symptomatic
CPAPStandard care3916 monthsDaytime
Total1206
  • AHI, apnoea–hypopnoea index; ODI, oxygen desaturation index; ESS, Epworth Sleepiness Score; BP, blood pressure.