Table 2.
Baseline characteristics of MrOS in all-cause and CVD death.
| Characteristics | Total n = 2,658 | Alive (n = 1,197) | All-Cause Death (n = 1,461) | CVD Death (n = 506) |
|---|---|---|---|---|
| Age, year | 76.3 ± 5.5 | 73.6 ± 4.0 | 78.5 ± 5.5 | 79.0 ± 5.4 |
| Race, n (%) | ||||
| Caucasian | 2,422 (91.1) | 1,071 (89.5) | 1,351 (92.5) | 473 (93.5) |
| Non-Caucasian | 236 (8.9) | 126 (10.5) | 110 (7.5) | 33 (6.5) |
| Body weight, n (%) | ||||
| Obesity | 637 (24.1) | 282 (23.6) | 355 (24.4) | 134 (26.5) |
| Overweight | 1,369 (51.7) | 648 (54.2) | 721 (49.7) | 250 (49.4) |
| Normal | 642 (24.2) | 265 (22.2) | 377 (25.9) | 122 (24.1) |
| Smoking status, n (%) | ||||
| Current | 1,047 (39.4) | 505 (42.2) | 542 (37.1) | 185 (36.6) |
| Former | 1,557 (58.6) | 671 (56.1) | 886 (60.6) | 315 (62.2) |
| Never | 54 (2.0) | 21 (1.7) | 33 (2.3) | 6 (1.2) |
| Alcohol use, n (%) | 1,733 (65.4) | 817 (68.4) | 916 (63.0) | 307 (60.8) |
| Medical history, n (%) | ||||
| MI | 459 (17.3) | 138 (11.5) | 321 (22.0) | 142 (28.1) |
| CHF | 155 (5.8) | 32 (2.7) | 123 (8.4) | 64 (12.6) |
| Cerebrovascular disease | 297 (11.2) | 86 (7.2) | 211 (14.5) | 78 (15.4) |
| COPD | 132 (5.0) | 38 (3.2) | 94 (6.4) | 25 (4.9) |
| Chronic bronchitis | 129 (4.9) | 53 (4.4) | 76 (5.2) | 24 (4.7) |
| Diabetes mellitus | 336 (14.3) | 133 (12.4) | 203 (15.8) | 83 (18.2) |
| Hypertension | 1,323 (49.8) | 519 (43.4) | 804 (55.0) | 309 (61.1) |
| Lipid-lowering medication use, n (%) | 1,128 (42.4) | 527 (44.0) | 601 (41.1) | 236 (46.6) |
| Benzodiazepine use, n (%) | 124 (4.7) | 42 (3.5) | 82 (5.6) | 24 (4.7) |
| Sleep duration, h | 8.3 ± 1.2 | 8.2 ± 1.1 | 8.5 ± 1.2 | 8.5 ± 1.2 |
| Insomnia symptom, n (%) | 217 (8.2) | 86 (7.2) | 131 (9.0) | 52 (10.3) |
| Sleep timing | ||||
| Bedtime, pm | 10.7 ± 1.1 | 10.7 ± 1.0 | 10.6 ± 1.2 | 10.6 ± 1.2 |
| Wake-up time, am | 6.8 ± 1.2 | 6.7 ± 1.1 | 6.9 ± 1.2 | 7.0 ± 1.3 |
| Sleep midpoint, am | 2.8 ± 1.0 | 2.7 ± 0.9 | 2.8 ± 1.0 | 2.8 ± 1.1 |
| AHI, events/h | 11.8 ± 13.0 | 10.6 ± 11.9 | 12.7 ± 13.8 | 14.0 ± 14.4 |
| T90, % | 4.3 ± 9.9 | 3.2 ± 7.9 | 5.1 ± 11.2 | 5.4 ± 10.4 |
| Follow-up time, year | 10.4 ± 3.9 | 13.6 ± 0.3 | 7.9 ± 3.5 | 7.9 ± 3.6 |
Results are presented as mean ± SD or n (%).
AHI = apnea-hypopnea index, CHF = congestive heart failure, COPD = chronic obstructive pulmonary disease, CVD = cardiovascular disease, MI = myocardial infarction, MrOS = Osteoporotic Fractures in Men Study, T90 = percent time below oxygen desaturation 90%.