The Influence of Functional Endoscopic Sinus Surgery on Sleep Related Outcomes in Patients with Chronic Rhinosinusitis

Table 1

Comparison of preoperative characteristics when classified by apnea-hypopnea index (AHI).

Classification	Non-OSAS	Mild OSAS	Moderate OSAS	Severe OSAS	P value
	N=32	N= 26	N= 26	N=12
Gender (Male/Female)	10/22	11/15	21/5	8/4	0.031∗
Age (years)	36.5 ± 11.9	43.0 ± 13.1	51.5 ± 13.7	51.0 ± 12.9	<0.001∗
SNOT-20 score	40.0 ± 17.5	37.9 ± 18.7	30.3 ± 21.2	23.1 ± 14.6	0.019∗
Nasal obstruction score	3.4 ± 1.2	3.4 ± 1.6	2.5 ± 1.6	2.3 ± 1.7	0.029∗
MCA2	0.36 ± 0.17	0.40 ± 0.15	0.42 ± 0.20	0.49 ± 0.19	0.181
Endoscopic score	5.1 ± 1.9	5.2 ± 2.3	5.5 ± 2.4	5.1 ± 3.0	0.874
Without polyp/with polyp	16/16	12/14	16/10	6/6	0.712
CT score	12.0 ± 4.6	10.9 ± 5.1	12.8 ± 5.3	10.5 ± 5.2	0.588
BMI	24.00 ± 4.49	25.30 ± 3.04	25.66 ± 5.83	29.34 ± 4.21	0.002∗
ESS score	8.9 ± 5.2	8.4 ± 4.6	9.2 ± 4.5	5.7 ± 3.7	0.233
Sleep-domain of SNOT-20	14.2 ± 7.8	14.4 ± 8.2	11.3 ± 8.3	10.1 ± 7.9	0.231
Snoring index	130.05 ± 103.02	274.44 ± 102.06	322.73 ± 123.70	497.86 ± 137.30	<0.001∗
AHI	1.89 ± 1.35	9.05 ± 2.85	19.88 ± 3.62	51.21 ± 14.93	<0.001∗
Lowest SaO2 (%)	90.53 ± 3.06	86.19 ± 5.10	85.14 ± 7.73	72.68 ± 12.53	<0.001∗

OSAS: obstructive sleep apnea syndrome; Non-OSAS: AHI < 5; mild OSAS: AHI ≥ 5 but < 15; moderate OSAS: AHI ≥ 15 but < 30; severe OSAS: AHI ≥ 30; BMI: body mass index; ESS: Epworth Sleep Score; SNOT-20: Sinonasal Outcome Test-20; SaO2: arterial oxygen saturation; MCA₂: mean of the second minimal cross-sectional area; CT: computed tomography; -Square test; -Wallis test; ∗P < 0.05.