Table 2

Baseline BP and arterial stiffness characteristics

All patients, n=322AutoCPAP group, n=161FP-CPAP group, n=161 p Value
Office SBP, mm Hg132.5 (124.0/145.0)130.0 (123.0/142.5)135.0 (125.0/145.0)0.23
Office DBP, mm Hg80.0 (73.0/86.0)80.0 (73.0/87.0)79.0 (73.0/85.0)0.35
24 h SBP, mm Hg128.0 (120.0/136.0)126.0 (118.0/135.0)128.8 (121.0/136.0)0.57
24 h DBP, mm Hg78.0 (73.0/83.0)78.0 (73.0/83.0)78.0 (72.0/83.0)0.86
24 h mean BP, mm Hg94.0 (89.0/99.3)94.0 (89.0/98.0)94.0 (89.0/101.0)0.75
Daytime SBP, mm Hg132.0 (124.0/141.0)131.0 (123.0/141.0)133.0 (125.0/142.0)0.55
Daytime DBP, mm Hg82.0 (76.0/88.0)82.0 (76.0/88.8)82.0 (75.9/88.0)0.78
Daytime mean BP, mm Hg98.0 (92.0/104.0)98.0 (92.0/103.0)98.0 (93.0/105.0)0.76
Nighttime SBP, mm Hg118.0 (109.0/127.2)118.0 (108.0/128.0)119.0 (110.0/127.0)0.82
Nighttime DBP, mm Hg71.0 (65.0/76.0)70.0 (65.0/76.0)71.0 (66.0/77.0)0.95
Nighttime mean BP, mm Hg87.0 (81.0/93.0)86.0 (82.0/93.0)87.0 (81.0/93.0)0.85
Arterial stiffness, m/s10.3 (9.2/11.6)10.3 (9.2/11.6)10.2 (9.2/11.5)0.59
  • Data are presented as median (25th/75th percentiles).

  • AutoCPAP, auto-adjusted CPAP; BP, blood pressure; DBP, diastolic blood pressure; FP-CPAP, fixed-pressure CPAP; SBP, systolic blood pressure.