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Table 1 Subject characteristics by obstructive sleep apnea statusa

From: Fatigue and sleepiness determine respiratory quality of life among veterans evaluated for sleep apnea

 

All subjects

None to mild OSAb

Moderate to severe OSA

 

Subject characteristics

N = 1578

N = 755

N = 823

p-value

Age, years

61.1 (16.8)

58 (22.2)

63.3 (13.5)

<0.001

Male, n (%)

1482 (93.9%)

686 (91.9%)

796 (96.7%)

<0.001

Ethnicity

 White

996 (63.1%)

480 (63.6%)

516 (62.7%)

0.72

 Non-white

582 (36.9%)

275 (36.4%)

307 (37.3%)

<High School Education

325 (20.6%)

154 (20.4%)

171 (20.8%)

0.85

Married/partnered

1039 (65.8%)

469 (62.1%)

570 (69.3%)

<0.01

Currently Employed

558 (35.4%)

289 (38.3%)

269 (32.7%)

<0.05

BMI, kg/m3

32.2 (8.1)

30.6 (6.3)

34.3 (8.8)

<0.001

Smoking status

0.03c

 Never

553 (35.1%)

280 (37.1%)

273 (33.2%)

 

 Former

826 (52.3%)

369 (48.9%)

457 (55.5%)

 Current

199 (12.6%)

106 (14.0%)

93 (11.3)

Any Lung Disease

262 (16.6%)

129 (17.1%)

133 (16.2%)

0.62

 COPD

94 (6.0%)

50 (6.6%)

44 (5.3%)

0.29

 Asthma

181 (11.5%)

90 (11.9%)

91 (11.1%)

0.59

 ILD

8 (0.5%)

0 (0%)

8 (1.0%)

<0.01d

  1. a Abbreviations: BMI Body Mass Index, COPD chronic obstructive pulmonary disease, ILD interstitial lung disease, OSA obstructive sleep apnea
  2. bNone or mild OSA defined as an apnea-hypopnea index <15 events per hour. Moderate and severe obstructive sleep apnea defined as an apnea-hypopnea index ≥15 events per hour
  3. c P-value for 2*3 χ2 test. P-value for 2*2 test comparing ever with never smokers is 0.10
  4. d P-value for Fisher exact 2-sided test
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Health and Quality of Life Outcomes

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