Table 1 Clinical characteristics of patients and data from sleep study.

From: Long-term effect of continuous positive airway pressure therapy on blood pressure in patients with obstructive sleep apnea

n = 1293

Mean (standard deviation)

Age, y

53.4 (12.7)

Body weight, kg

77.3 (16.3)

BMI, kg/m2

27.0 (4.8)

Blood pressure, mmHg

S BP

133.6 (16.9)

D BP

86.7 (12.4)

CAVI right/left

7.45 (1.3)/7.37 (1.3)

HR, beats/minute

72.6 (16.2)

ESS

8.3 (4.5)

Overnight polysomnography

AHI, events/h

40.0 (19.5)

SaO2 < 90, %TST

27.4 (15.5)

Mean SaO2, %

95.6 (2.5)

Lowest SaO2, %

76.1 (11.4)

CPAP therapy

Residual AHI, events/h, 1 month

2.9 (3.1)

Residual AHI, events/h, 24 months

2.1 (1.8)

CPAP use ≥ 4 h/night, % nights, 24 months

62.3 (27.2)

  1. Data expressed as mean (standard deviation); S BP systolic blood pressure, D BP diastolic blood pressure, HR heart rate, CAVI Cardio Ankle Vascular Index, ESS Epworth Sleepiness Scale, AHI apnea–hypopnea index, TST total sleep time, BMI body mass index, SaO2 arterial oxyhemoglobin saturation.
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