Skip to main content

Table 3 Summary of logistic regression for screening variables predicting AHI ≥15/h in insomnia sufferers (n = 1311)

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

Variables Adjusted OR (IC 95%) P-value
Gender   <0.001
 Male 7.28 (4.41 to 12.00)
 Female 1
Snoring   <0.001
 Yes 2.59 (1.66 to 4.03)
 No 1
Insomnia maintenance   0.026
 Yes 1
 No 1.53 (1.05 to 2.22)
Epworth   0.031
  ≤ 10 1
  >10 1.51 (1.04 to 2.21)
CRP (mg/L)   0.022
  ≤ 7 1
  >7 2.12 (1.11 to 4.04)
BMI (kg/m2)   <0.001
  < 25 1
  ≥ 25 & <30 3.36 (1.85 to 6.11)
  ≥ 30 7.80 (4.27 to 14.26)
Age (years)   <0.001
  < 50 1
  ≥ 50 & <65 2.05 (1.37 to 3.07)
  ≥ 65 7.28 (3.68 to 14.40)
Metabolic syndrome   0.025
 Yes 1.79 (1.08 to 2.98)
 No 1
  1. Not included in the model because not significant: BDI, ISI, benzodiazepines, Z-drugs, antidepressants, smoking and alcohol
  2. Adequacy of model: Hosmer-Lemeshow chi2 (p = 0.682)
  3. Specificity of model: Linktest (linear component p < 0.001 and nonlinear component p = 0.233)
  4. BMI Body Mass Index, BDI Beck Depression Inventory, AHI Apnea-Hypopnea Index, ISI Insomnia Severity Index