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Table 5 Odds of experiencing headache during the past year among patients with suspected OSA

From: Prevalence and predictors of headache in patients referred to polysomnography

  n Odds ratio 95% confidence interval p
Normal (AHI <5) 222 1   
Mild OSA (AHI 5-14) 126 1.13 (0.59-2.17) 0.71
Moderate OSA (AHI 15-29) 66 1.26 (0.58-2.76) 0.56
Severe OSA (AHI ≥ 30) 61 1.00 (0.46-2.18) 0.99
  1. OSA = obstructive sleep apnea.
  2. Multivariate logistic regression analysis, adjusted for age, sex, and education (N = 475).