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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
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Respiratory Research

ISSN: 1465-993X

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