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. 2017 May 17;12(5):e0176575. doi: 10.1371/journal.pone.0176575

Table 1. Demographic, sleep, and laboratory data of study participants in the microarray gene expression experiment (study cohort 1 and 2).

Study Cohort 1 Study Cohort 2
Subjects with primary snoring (PS) N = 6 Moderate-severe OSA patients (MSO)
N = 15
Very severe OSA patients(VSO) N = 12 Very severe OSA patients on CPAP (VSOC)
N = 15
P value Subjects with primary snoring(PS)
N = 16
Moderate-severe OSA patients (MSO)
N = 18
Very severe OSA patients (VSO)
N = 18
Very severe OSA patients on CPAP (VSOC)
N = 16
P value
Age, years 51.0±11.3 46.9±11.9 47±11.4 50.4±8 0.592 49.7±9.3 47.6±11.5 47.5±10.2 50.4±8.0 0.766
Male Sex, n(%) 4 (66.7) 12 (80) 9 (81.8) 12 (75) 0.871 8 (50) 14 (77.8) 16 (88.9) 12 (75) 0.075
BMI, kg/m2 25.1±2 27.2±3.8 28±3.6 28.4±4.5 0.231 26.6±3.4 27.2±3.8 26.9±4.5 28.3±4.5 0.647
AHI,events/hour 4.2±2.1 34.1±8.8 67.4±12.3 66.2±24.3 <0.001 3.1±2.5 34.8±9.5 70.3±12.1 64.5±24.5 <0.001
ODI,events/hour 2.4±1.4 24.9±13.8 62.1±11.9 58.1±26.4 <0.001 2.1±2.0 23.9±13.2 59.1±22.1 58.1±26.4 <0.001
Mean SaO2, % 96.8±0.4 95.2±1.9 93.3±2.2 93.2±3.6 <0.001 97.2±0.7 95.3±1.8 93.6±2.3 93.2±3.6 <0.001
Minimum SaO2, % 88.5±1.8 78.3±8.5 65.5±12.7 72±11.3 <0.001 89.3±3.4 78.9±8.2 67.6±12.9 72.0±11.3 <0.001
Arousal index 10.9±9.6 30.5±24.4 46.6±29.5 63.6±41.9 0.002 13.9±10.5 32.9±25.1 46.9±27.3 63.6±41.9 <0.001
ESS 12.3±5.9 8.7±5.4 10.5±4.7 14.1±4.7 0.026 6.8±6.2 8.4±5.4 11.1±5.1 14.1±5.7 0.003
Smoking, n(%) 5 (83.3) 9 (60) 6 (54.5) 11 (68.8) 0.612 2 (14.3) 7 (38.9) 7 (38.9) 5 (31.3) 0.421
Alcoholism, n(%) 5 (83.3) 7 (46.7) 8 (72.7) 11 (68.8) 0.322 0 (0) 2 (11.1) 2 (11.1) 0 (0) 0.315
Cholesterol, mg/dl 190.2±36.2 203.1±47.3 174.6±59.3 164.4±71.5 0.356 190.2±39.6 187.6±66.4 184.6±53.8 164.5±71.5 0.621
Triglycerides, mg/dl 130.8±67 199±126.4 155.5±59.9 194.6±151.9 0.499 120.6±56.8 194.8±121.1 155.4±60.1 194.6±151.9 0.153
HDL, mg/dl 59.8±14.5 52.7±10.9 49.9±4.7 48.8±18.4 0.193 57.5±11.2 49.1±16.1 52.7±9.5 48.7±13.4 0.321
LDL, mg/dl 106.7±33.6 110.1±31.6 102.5±31.7 100.4±40.1 0.956 102.2±31.4 110.7±33.1 107.2±38.1 100.4±40.1 0.866
Glucose, mg/dl 96.3±5.8 101.3±15.7 101.6±12.3 107.9±25.5 0.355 94.8±5.7 99.7±15.7 97.2±13.7 107.9±25.4 0.194
Co-morbidity,n(%)
Hypertension 2 (33.3) 6 (40) 2 (18.2) 8 (50) 0.271 4 (25) 7 (38.9) 6 (33.3) 8 (50) 0.516
Diabetes mellitus 0 (0) 0 (0) 0 (0) 3 (18.8) 0.071 0 (0) 0 (0) 0 (0) 3 (18.8) 0.017
Cardiac disease 1 (16.7) 1 (6.7) 1 (9.1) 2 (12.5) 0.752 2 (12.5) 2 (11.1) 2 (11.1) 2 (12.5) 0.999
Stroke 1 (16.7) 0 (0) 0 (0) 0 (0) 0.067 1 (6.3) 0 (0) 0 (0) 0 (0) 0.348
Chronic kidney disease 1 (16.7) 1 (6.7) 1 (8.3) 2 (13.3) 0.384 1 (6.3) 1 (5.6) 2 (11.1) 2 (12.5) 0.86

BMI = body mass index; AHI = apnea hypopnea index; ODI = oxygen desaturation index; HDL = high density lipoprotein; LDL = low density lipoprotein