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. 2019 Apr 5;20:67. doi: 10.1186/s12931-019-1033-y

Table 2.

Comparison of the patients with respect to severity of obstructive sleep apnea hypopnea syndrome (OSAHS)

Parameters Mild to moderate OSA Severe OSA p
Age (years) 51.52 ± 11.14 55.47 ± 10.23 0.131
Gender (f/m) 11/18 7/33 0.056
Smoker (n/y) 24/5 33/7 0.978
Diabetes (n/y) 26/3 30/10 0.124
CAD (n/y) 25/4 35/5 0.875
CVD (n/y) 27/2 35/5 0.447
Metabolic syndrome (n/y) 3/21 5/34 0.970
RR systolic (mmHg) 135 (120–145) 141.25 (126.25–146.25) 0.300
RR diastolic (mmHg) 87.08 ± 8.23 90.44 ± 10.11 0.174
Arterial hypertension (n/y) 12/16 4/36 0.002
Weight (kg) 91.2 (76.5–94.7) 100.85 (90.25–121.65) < 0.001
BMI (kg/m2) 30.07 (28.23–32.56) 35.51 (30.15–39.07) < 0.001
Abdominal circumference (cm) 108 (99–113) 118.5 (109–126.5) < 0.001
Neck circumference (cm) 40.96 ± 4.03 46.35 ± 4.80 < 0.001
Height (m) 169.93 ± 7.57 172.39 ± 7.59 0.189
Irisin (ng/ml) 6.91 ± 0.76 6.94 ± 0.90 0.886
BDNF (ng/ml) 359.12 ± 108.75 375.99 ± 118.12 0.549
IMT (mm) 0.61 ± 0.09 0.67 ± 0.09 0.015
Urea (mmol/L) 5.1 (4.1–6) 5.4 (4.3–6.6) 0.246
Creatinine (μmol/L) 69 (62–80) 80 (74–96) < 0.001
GOT (U/L) 18 (17–22) 21 (18–25) 0.044
GPT (U/L) 25 (19–32) 27 (20–39) 0.303
γGT (U/L) 29 (23–52) 38 (29–54) 0.154
CK (U/L) 109 (71–158) 120 (92–162) 0.297
LDH (U/L) 175 (160–200) 174 (159–201) 0.818
Glucose (mmol/L) 5.2 (5.1–5.7) 5.8 (5.2–6.7) 0.012
Insulin (mU/L) 13.2 (9.3–16.6) 16.2 (9.9–31.2) 0.133
HbA1C (%) 5.5 (5.2–5.9) 5.9 (5.5–6.5) 0.009
Cholesterol (mmol/L) 5.08 ± 1.10 5.25 ± 1.01 0.506
LDL-C (mmol/L) 3.25 ± 0.96 3.21 ± 1.09 0.885
HDL-C (mmol/L) 1.4 (1.2–1.6) 1.1 (0.90–1.2) < 0.001
Apo-A1 (g/L) 1.58 ± 0.23 1.35 ± 0.20 < 0.001
ApoB (g/L) 1.01 ± 0.25 1.11 ± 0.29 0.134
Lp(a) (mg/L) 390.52 ± 455.97 150.51 ± 205.51 0.005
TG (mmol/L) 1.1 (0.7–1.6) 1.8 (1.5–3.6) < 0.001
CRP (normal/high) 27/2 27/12 0.016
Beck score 5 (2.5–10.5) 6 (3–10) 0.608
Epworth score 8.21 ± 4.27 11.38 ± 4.48 0.004
PSQI 4 (3–8) 5 (4–7.5) 0.169
Oxygen desaturation index (1/h) 8 (6–16) 60.1 (29.9–84.4) < 0.001
Arousal index (1/h) 26 (15.8–48.1) 48.1 (32.1–63.5) 0.002
Central apnea index (1/h) 1.1 (0.6–1.9) 3.3 (0.95–7.7) 0.002
Obstructive apnea index (1/h) 4.4 (3.0–7.0) 22.65 (15.65–41.1) < 0.001
Hypopnea index (1/h) 7.8 (5.6–12) 19.8 (14.1–26.8) < 0.001

Patients were grouped into mild to moderate (AHI at < 30/h, n = 29 patients) or severe OSAHS (AHI ≥ 30/h, n = 40 patients). Data are presented as mean ± SD or median (interquartile range) unless otherwise stated. Differences between the two groups were considered significant at p < 0.05 (indicated in bold)