The Treg/Th17 Imbalance in Patients with Obstructive Sleep Apnoea Syndrome

Table 1

Baseline characteristics of study population.

Variables	Control	OSAS
		Total	Mild to Moderate	Severe
Subjects, n	20	44	23	21
Age (years)	45.80 ± 23.01	46.43 ± 18.22	44.90 ± 20.64	48.07 ± 11.28
BMI (kg/m^2)	26.90 ± 4.25	28.15 ± 5.34	28.55 ± 6.29	27.82 ± 5.01
Neck circumference (cm)	41.15 ± 5.63	43.93 ± 5.72	43.58 ± 6.22	44.13 ± 5.19
AHI (episodes/h)	2.26 ± 1.30	40.41 ± 20.68*	23.12 ± 6.93^‡	59.33 ± 12.59^†§
Nadir SaO2 (%)	94.78 ± 3.49	76.24 ± 7.56*	80.65 ± 8.19^‡	71.56 ± 7.87^†§
SaO2 < 90% (%TST)	1.06 ± 0.93	17.63 ± 8.32*	7.72 ± 7.43^‡	28.52 ± 10.37^†§
ESS scores	4.93 ± 2.05	14.74 ± 1.74*	13.80 ± 1.92^‡	15.95 ± 1.63^§

Values are expressed as mean ± SD.
* P < 0.05, Control versus total OSAS;
^†P < 0.05, Mild to Moderate OSAS versus Severe OSAS;
^‡P < 0.05, Control versus Mild to Moderate OSAS;
^§P < 0.05, Control versus Severe OSAS.
Definition of abbreviations: AHI: apnoea hypopnoea index; BMI: body mass index; ESS, Epworth sleepiness scale; nadir: lowest oxygen saturation recorded; OSAS: obstructive sleep apnoea syndrome; TST: total sleep time.