Table 2

Mean (SD) overall, daytime, and night time ambulatory blood pressures in all patients with OSA and excluding treated hypertensive subjects compared with control subjects

Patients with OSA (n=45) Control subjects (n=45) Mean difference (95% CI) p value Patients with
OSA excluding hypertensives
(n=39)
Control subjects excluding hypertensives
(n=39)
Mean difference
(95% CI)
p value
Overall SBP128.2  (17.2)123.9  (13.8)4.3 (–1.8 to 10.3)0.18127.6  (18.0)122.6  (13.5)5.0 (–1.9 to 11.8)0.17
Overall DBP83.7 (9.5)78.6 (8.8)5.1 (1.2 to 8.6)0.01* 83.2 (9.0)78.0 (8.5)5.2 (1.3 to 9.1)0.01*
Daytime SBP132.9 (16.5)131.2 (14.8)1.7 (–4.1 to 7.6)0.57132.4 (17.2)130.3 (14.6)2.1 (–4.5 to 8.64)0.55
Daytime DBP87.4 (10.2)82.8 (9.1)4.6 (0.7 to 8.6)0.03* 87.1 (9.6)82.3 (8.9)4.8 (0.7 to 9.0)0.03*
Night time SBP119.4 (20.7)110.2 (13.9)9.2 (2.3 to 16.1)0.01* 118.4 (22.0)108.7 (13.2)9.7 (1.7 to 17.7)0.02*
Night time DBP78.6 (9.3)71.4 (8.0)7.2 (3.7 to 10.6)<0.001* 77.7 (9.2)70.7 (8.0)7.0 (3.3 to 10.8)<0.001*
  • SBP = systolic blood pressure; DBP = diastolic blood pressure.