Table 1:

Characteristics of patients with sleep apnea and matched controls

CharacteristicNo. (%) of patients*p value
Sleep apnea
n = 6 816
Control
n = 27 284
Age, yr
 Mean ± SD46.49 ± 14.5246.50 ± 14.52
 < 655 989 (87.9)23 970 (87.9)> 0.9
 ≥ 65827 (12.1)3 314 (12.1)
Follow-up years, median (IQR)4.00 (2.26–6.30)4.04 (2.29–6.37)0.4
Sex
 Female2 542 (37.3)10 175 (37.3)> 0.9
 Male4 274 (62.7)17 109 (62.7)
Comorbidity
 Diabetes mellitus1 315 (19.3)5 232 (19.2)0.8
 Coronary heart disease1 603 (23.5)6 375 (23.4)0.8
 Heart failure450 (6.6)1 755 (6.4)0.6
 Cerebrovascular disease869 (12.7)3 437 (12.6)0.7
 Dementia80 (1.2)230 (0.8)0.01
 Epilepsy165 (2.4)596 (2.2)0.2
 Parkinson disease100 (1.5)305 (1.1)0.02
 CKD/ESRD760 (11.2)2 996 (11.0)0.7
 Liver cirrhosis168 (2.5)589 (2.2)0.1
 GERD555 (8.1)2 129 (7.8)0.3
 Cancer181 (2.7)652 (2.4)0.2
 Asthma1 012 (14.8)3 996 (14.6)0.7
 COPD1 592 (23.4)6 331 (23.2)0.8
 Tuberculosis173 (2.5)628 (2.3)0.2
Treatment
 Statins618 (9.1)1 860 (6.8)< 0.001
 Inhaled steroid81 (1.2)241 (0.9)0.02
  • Note: CKD = chronic kidney disease, COPD = chronic obstructive pulmonary disease, ESRD = end-stage renal disease, GERD = gastroesophageal reflux disease, IQR = interquartile range, SD = standard deviation.

  • * Unless stated otherwise.