Table 1.
Characteristics of the participants.
| Characteristics | Total N=300 |
No OSA N= 218 (72.7%) |
OSA N= 82 (27.3%) |
p value |
|---|---|---|---|---|
| Demographic and anthropometric data | ||||
| Male sex, n (%) | 135 (45) | 82 (37.6) | 53 (64.6) | <0.001 |
| Age, years, mean (SD) | 48 (8.3) | 47 (7.8) | 50 (8.9) | 0.001 |
| White (self-reported race), n (%) | 206 (68.7) | 154 (71) | 52 (63.4) | 0.511 |
| Body-mass index, kg/m2, mean (SD) | 26.8 (4.6) | 26 (4.5) | 28.9 (4.5) | <0.001 |
| Classification of BMI, n (%) | ||||
| Normal | 62 (20.7) | 96 (44.1) | 13 (15.9) | |
| Overweight | 129 (43) | 85 (39) | 44 (53.7) | <0.001 |
| Obesity | 109 (36.3) | 37 (17) | 25 (30.5) | |
| Neck circumference, cm, mean (SD) | 35.9 (3.7) | 35.1 (3.4) | 37.9 (3.6) | <0.001 |
| Waist circumference, cm, mean (SD) | 88.8 (11.9) | 85.8 (11) | 96.6 (10.8) | <0.001 |
| Hypertension, n (%) | 65 (21.7) | 37 (17) | 28 (34.1) | 0.001 |
| Diabetes, n (%) | 48 (16) | 24 (11) | 24 (29.3) | <0.001 |
| Current Smoking, n (%) | 35 (11.7) | 22 (10.1) | 13 (16) | 0.159 |
| Depression, n (%) | 16 (5.3) | 14 (6.5) | 2 (2.5) | 0.175 |
| Excessive daytime sleepiness, n (%) | 105 (35) | 83 (38.1) | 22 (26.8) | 0.069 |
| Sleep data (Wrist actigraphy) | ||||
| Sleep time, min, mean (SD) | 396.5 (57.7) | 396.9 (58.1) | 395.5 (55.3) | 0.839 |
| Sleep time <6 hours, n (%) | 74 (24.7) | 55 (25.2) | 19 (23.2) | 0.712 |
| Sleep latency, min, mean (SD) | 21 (14.6) | 19.7 (14) | 24.4 (15.7) | 0.013 |
| Sleep efficiency, min, mean (SD) | 82.8 (6.4) | 83.6 (6.2) | 80.7 (6.5) | <0.001 |
| WASO, min, mean (SD) | 44 (18.9) | 41.1 (17.2) | 51.8 (21.1) | <0.001 |
| AWAKE, n, mean (SD) | 32.7 (11.2) | 31.3 (10.2) | 36.3 (12.9) | <0.001 |
OSA: Obstructive Sleep Apnea
BMI: Body-mass index
WASO: Wake after sleep onset
AWAKE: Number of awakenings