Skip to main content

Table 2 Univariate analysis (n = 1311)

From: Prevalence and risk factors of moderate to severe obstructive sleep apnea syndrome in insomnia sufferers: a study on 1311 subjects

Variables % AHI <15/h % AHI ≥15/h OR (IC 95%) P-value
Gender     <0.001
 Male 77.02% 22.98% 7.73 (4.92 to 12.15)  
 Female 96.28% 3.72% 1
Snoring     <0.001
 Yes 77.59% 22.41% 5.36 (3.61 to 7.96)
 No 94.89% 5.11% 1
Epworth     <0.001
  ≤ 10 89.20% 10.80% 1
  >10 82.44% 17.56% 1.76 (1.28 to 2.41)
BDI     0.002
  ≤ 8 83.78% 16.22% 3.21 (1.60 to 6.44)
  >8 & <16 88.07% 11.93% 2.24 (1.06 to 4.75)
  ≥16 94.30% 5.70% 1
ISI     0.004
  < 15 80.90% 19.10% 2.22 (1.34 to 3.68)
  ≥15 & <21 85.16% 14.84% 1.64 (1.10 to 2.43)
  ≥21 90.39% 9.61% 1
Metabolic syndrome     <0.001
 Yes 60.71% 39.29% 4.97 (3.27 to 7.56)
 No 88.49% 11.51% 1
Benzodiazepines use     0.394
 Yes 87.88% 12.12% 0.83 (0.54 to 1.28)
 No 85.74% 14.26% 1
Z-drugs use     0.231
 Yes 90.10% 9.90% 0.66 (0.34 to 1.30)
 No 85.79% 14.21% 1
Antidepressant therapy     0.137
 Yes 88.30% 11.70% 0.76 (0.53 to 1.09)
 No 85.19% 14.81% 1
Smoking     0.944
 Yes 86.24% 13.76% 0.99 (0.68 to 1.43)
 No 86.08% 13.92% 1
Alcohol     <0.001
 Yes 79.73% 20.27% 1.87 (1.33 to 2.62)
 No 88.02% 11.98% 1
Insomnia maintenance     0.035
 Yes 87.77% 12.23% 1
 No 83.65% 16.35% 1.40 (1.02 to 1.92)
BMI (kg/m2)     <0.001
  < 25 97.19% 2.81% 1
  ≥ 25 & <30 83.94% 16.06% 6.62 (3.77 to 11.62)
  ≥30 69.70% 30.30% 15.05 (8.69 to 26.08)
Age (years)     <0.001
  < 50 91.27% 8.73% 1
  ≥ 50 & <65 78.99% 21.01% 2.78 (1.98 to 3.92)
  ≥ 65 57.81% 42.19% 7.63 (4.41 to 13.22)
CRP (mg/L)     0.002
  ≤7 86.92% 13.08% 1
  >7 75.00% 25.00% 2.21 (1.33 to 3.69)
  1. BMI Body Mass Index, BDI Beck Depression Inventory, AHI Apnea-Hypopnea Index, ISI Insomnia Severity Index