TABLE 1
PREVALENCE OF SLEEP APNEA


Age Total (n741)
20-44 (n236 ) 45-64 (n430) 65-100 (n75)

Sleep apnea*
Obstructive 1.2 (0.4, 3.8)  4.7 (3.1, 7.1)  1.7 (0.3, 9.1)  3.3 (2.2, 4.8)
Central  ---  0.4 (0.1, 1.8)  1.1 (0.1, 8.9)  0.4 (0.1, 1.2)
Apnea/hypopnea index
  >= 5 7.9 (5.0, 12.1) 19.7 (16.2, 23.7) 30.5 (21.1, 41.7) 17.0 (14.5, 19.9)
  >= 10 3.2 (1.6, 6.4) 11.8 (9.1, 15.3) 23.9 (15.7, 34.9) 10.5 (8.3, 12.7)
  >= 20 1.7 (0.6, 4.4)  6.4 (4.3, 8.9) 13.3 (7.3, 23.0)  5.6 (4.0, 7.4)
Obstructive apnea/hypopnea index
  >= 5 7.9 (5.0, 12.1) 18.8 (15.4, 22.8) 24.8 (16.3, 35.7) 15.9 (13.5, 18.7)
  >= 10 3.2 (1.6, 6.4) 11.3 (8.5, 14.5) 18.1 (10.9, 28.4)  9.4 (7.4, 11.6)
  >= 20 1.7 (0.6, 4.4)  6.3 (4.2, 8.8)  5.1 (1.9, 13.0)  4.7 (3.3, 6.3)
Central apnea index
  >= 2.5  ---  1.7 (0.8, 3.4) 12.1 (6.5, 21.6)  2.2 (1.3, 3.5)
  >= 20 --- ---  5.2 (2.0, 13.2)  0.5 (0.2, 1.4)

* Diagnosed in Sleep Disorders Clinic.