Asthma Control and Its Relationship with Obstructive Sleep Apnea (OSA) in Older Adults
Table 3
OSA (clinically-diagnosed and untreated), SA-SDQ scores, and frequencies of individual symptoms (when present with any frequency), in older and younger asthma subjects.
Mean ± SD or number (%) of subjects
P value
Older ()
Younger ()
OSA
20 (13%)
45 (7%)
0.01
SA-SDQ score
30.2 ± 6.4
27.7 ± 7.6
<0.0001
Snoring
126 (82%)
511 (78%)
0.25
Habitual snoring*
37 (24%)
172 (26%)
0.60
Witnessed apneas
50 (32%)
167 (25%)
0.07
Sudden gasping arousals
48 (31%)
276 (42%)
0.01
Excessive sweating at night
109 (71%)
481 (73%)
0.58
Current or history of hypertension
87 (56%)
182 (28%)
<0.0001
Nasal congestion during sleep
118 (77%)
485 (74%)
0.44
Snoring worse when supine
103 (67%)
433 (66%)
0.78
Snoring worse after alcohol
51 (33%)
236 (36%)
0.53
Definition of abbreviations: OSA: obstructive sleep apnea; SA-SDQ: Sleep Apnea scale of the Sleep Disorders Questionnaire (range 12–60); *Habitual snoring: snoring occurring “usually” or “always” (responses of 4 or 5 on the SA-SDQ).
