Relationships between Obstructive Sleep Apnea Syndrome, Continuous Positive Airway Pressure Treatment, and Inflammatory Cytokines

Table 1

Characteristics of OSAS patients and nonapneic control individuals.

	OSAS patients; 𝑛=33	Control individuals; 𝑛=24	𝑃 values
Age (years)	45.3 ± 8.5	40.5 ± 9.5	0.110
NC (cm)	44.6 ± 2.9	43.3 ± 3.0	0.090
WC (cm)	114.8 ± 9.5	105.1 ± 5.7	<0.001
BMI (kg/m^2)	31.0 ± 1.7	30.7 ± 1.5	0.065
AHI (events/h)	47.2 ± 23.2	3.6 ± 1.8	<0.001
Minimum SaO2 (%)	72.8 ± 10.3	85.5 ± 4.5	<0.001
Mean SaO2 (%)	88.4 ± 2.9	92.9 ± 2.2	<0.001
SaO2 ≥ 90 (% TST)	47.6 ± 29.2	91.9 ± 12.2	<0.001
SE	81.0 ± 9.4	83.8 ± 8.3	0.243
ESS	10.3 ± 5.6	7.6 ± 5.6	0.075
BP systolic	124 ± 17	119 ± 13	0.150
BP diastolic	75 ± 13	72 ± 10	0.341

AWC: waist circumference; NC: neck circumference; BMI: body mass index; AHI: apnea-hypopnea index; Minimum SaO₂: the lowest oxygen saturation recorded during sleep; mean SaO₂: the average oxygen saturation recorded during sleep; SaO₂ ≥ 90 (% TST): the amount of total sleep time spent at ≥90% saturation; SE: sleep efficiency; ESS: Epworth sleepiness scale; BP: blood pressure.