Table 1.
Patient characteristics by total sleep time and sleep efficiency.
| Whole Sample (n = 4,957) | TST ≤ 4 h (n = 556) | TST > 4 h (n = 4,401) | P | ||
|---|---|---|---|---|---|
| Age (y), mean (SD) | 52.9 (14.9) | 61.0 (14.4) | 51.9 (14.7) | <.001 | |
| AHI (events/h), mean (SD) | 16.6 (17.9) | 26.9 (27.2) | 15.2 (15.9) | <.001 | |
| OSA, n (%) | |||||
| None | 1,275 (25.7%) | 254 (45.7%) | 1,301 (29.6%) | <.001 | |
| Mild | 1,747 (35.2%) | 102 (26.4%) | 1,550 (37.1%) | ||
| Moderate | 1,204 (24.3%) | 83 (21.4%) | 1,047 (25.0%) | ||
| Severe | 731 (14.7%) | 117 (30.2%) | 503 (12.0%) | ||
| Race (White), n (%) | 3,437 (69.3%) | 397 (71.4%) | 3,040 (69.1%) | .262 | |
| Sex (male), n (%) | 2,036 (41.1%) | 294 (52.9%) | 1,742 (39.6%) | <.001 | |
| Body habitus, n (%) | |||||
| Normal weight | 432 (8.7%) | 56 (6.9%) | 376 (8.5%) | .505 | |
| Overweight | 1,039 (21.0%) | 107 (19.2%) | 932 (21.2%) | ||
| Mild obesity | 1,196 (24.1%) | 138 (24.8%) | 1,058 (24.0%) | ||
| Morbid obesity | 2,290 (46.2%) | 255 (45.9%) | 2,035 (46.2%) | ||
| Drugs, n (%) | |||||
| Antidepressants | 1,161 (23.4%) | 94 (16.9%) | 1,067 (24.2%) | <.001 | |
| Antipsychotics | 304 (6.1%) | 28 (5.0%) | 276 (6.3%) | .252 | |
| Sedatives | 1,511 (30.5%) | 162 (29.1%) | 1,349 (30.6%) | .465 | |
| Comorbidities, n (%) | |||||
| None | 1,133 (22.9%) | 114 (19.6%) | 1,019 (23.2%) | .343 | |
| One | 2,911 (58.7%) | 333 (59.9%) | 2,578 (58.6%) | ||
| Two or greater | 913 (18.4%) | 109 (20.5%) | 804 (18.2%) | ||
| Whole Sample (n = 4,957) | SE ≤ 50% (n = 406) | SE > 50% (n = 4,551) | |||
| Age (y), mean (SD) | 52.9 (14.9) | 61.79 (14.5) | 52.11 (14.7) | <.001 | |
| AHI (events/h), mean (SD) | 16.56 (17.9) | 28.21 (27.0) | 15.52 (16.5) | <.001 | |
| OSA, n (%) | |||||
| None | 1,275 (25.7%) | 194 (47.8%) | 1,352 (29.7%) | <.001 | |
| Mild | 1,747 (35.2%) | 64 (24.4%) | 1,588 (36.9%) | ||
| Moderate | 1,204 (24.2%) | 62 (21.5%) | 1,068 (25.0%) | ||
| Severe | 731 (14.7%) | 86 (32.8%) | 543 (12.4%) | ||
| Race (White), n (%) | 3,437 (69.3%) | 292 (71.9%) | 3,145 (69.1%) | .238 | |
| Sex (male), n (%) | 2,036 (41.1%) | 215 (53.0%) | 1,821 (40.0%) | <.001 | |
| Body habitus, n (%) | |||||
| Normal weight | 432 (8.7%) | 43 (10.6%) | 389 (8.5%) | .435 | |
| Overweight | 1,039 (21.0%) | 78 (19.2%) | 961 (21.1%) | ||
| Mild obesity | 1,196 (241.%) | 102 (25.1%) | 1,094 (24.0%) | ||
| Morbid obesity | 2,290 (46.2%) | 183 (45.1%) | 2,107 (46.3%) | ||
| Drugs, n (%) | |||||
| Antidepressants | 1,161 (23.4%) | 77 (19.0%) | 1,084 (23.8%) | .027 | |
| Antipsychotics | 304 (6.1%) | 19 (4.7%) | 285 (6.3%) | .203 | |
| Sedatives | 1,511 (30.5%) | 114 (28.1%) | 1,397 (30.7%) | .272 | |
| Comorbidities, n (%) | |||||
| None | 1,133 (22.9%) | 84 (20.7%) | 1,049 (23.0%) | .471 | |
| 1 | 2,911 (58.7%) | 241 (59.3%) | 2,670 (58.7%) | ||
| ≥2 | 913 (18.4%) | 81 (20.0%) | 832 (18.3%) | ||
Patient characteristics by TST (top) and SE (bottom). AHI = apnea-hypopnea index, OSA = obstructive sleep apnea, SE = sleep efficiency, TST = total sleep time.