Table 1 Baseline characteristics according to healthy sleep score.
Characteristic | Healthy sleep score | Overall (n = 397,523) | ||||
|---|---|---|---|---|---|---|
0 (n = 1335) | 1 (n = 22,822) | 2 (n = 83,869) | 3 (n = 156,395) | 4 (n = 133,102) | ||
Age, mean (SD) | 56.3 (8.0) | 56.4 (8.0) | 56.6 (8.0) | 56.1 (8.2) | 56.2 (8.1) | 56.3 (8.1) |
Female (%) | 659 (49.4) | 13779 (60.4) | 48209 (57.5) | 82870 (53.0) | 72667 (54.6) | 218184 (54.9) |
White (%) | 1144 (85.7) | 20711 (90.8) | 76763 (91.5) | 143748 (91.9) | 123293 (92.6) | 365659 (92.0) |
TDI | 0.46 (3.65) | −0.63 (3.38) | −1.06 (3.19) | −1.36 (3.05) | −1.60 (2.92) | −1.33 (3.07) |
BMI (kg/m2), mean (SD) | 30.48 (6.47) | 28.51 (5.58) | 27.92 (5.10) | 27.38 (4.70) | 27.00 (4.49) | 27.44 (4.80) |
Education (%) | ||||||
College or University degree | 290 (21.7) | 5819 (25.5) | 24587 (29.3) | 53114 (34.0) | 46552 (35.0) | 130362 (32.8) |
No | 1045 (78.3) | 17003 (74.5) | 59282 (70.7) | 103281 (66.0) | 86550 (65.0) | 267161 (67.2) |
Physical activity (%) | ||||||
Meets WHO guidelines | 509 (38.1) | 10880 (47.7) | 42892 (51.1) | 84685 (54.1) | 76709 (57.6) | 215675 (54.3) |
Smoking status (%) | ||||||
Never | 554 (41.5) | 10638 (46.6) | 42646 (50.8) | 84584 (54.1) | 79406 (59.7) | 217828 (54.8) |
Previous | 475 (35.6) | 8321 (36.5) | 30155 (36.0) | 54693 (35.0) | 43283 (32.5) | 136927 (34.4) |
Current | 306 (22.9) | 3863 (16.9) | 11068 (13.2) | 17118 (10.9) | 10413 (7.8) | 42768 (10.8) |
Drinking status (%) | ||||||
Never | 84 (6.3) | 1115 (4.9) | 3835 (4.6) | 6344 (4.1) | 5850 (4.4) | 17228 (4.3) |
Previous | 145 (10.9) | 1216 (5.3) | 3404 (4.1) | 5196 (3.3) | 4006 (3.0) | 13967 (3.5) |
Current | 1106 (82.8) | 20491 (89.8) | 76630 (91.4) | 144855 (92.6) | 123246 (92.6) | 366328 (92.2) |
Hypertension (%) | 857 (64.2) | 13376 (58.6) | 48476 (57.8) | 86860 (55.5) | 73044 (54.9) | 222613 (56.0) |
Diabetes (%) | 214 (16.0) | 1902 (8.3) | 5282 (6.3) | 7735 (4.9) | 5387 (4.0) | 20520 (5.2) |
CVD (%) | 229 (17.2) | 2007 (8.8) | 5940 (7.1) | 8348 (5.3) | 5881 (4.4) | 22405 (5.6) |
Low-risk sleep factors (%) | ||||||
Sleep duration, 7–8 h/d | — | 3.4 | 27.4 | 72.1 | — | 67.8 |
Early chronotype | — | 8.0 | 42.1 | 50.0 | — | 62.5 |
No frequent insomnia | — | 4.2 | 35.2 | 79.2 | — | 72.3 |
No excessive daytime sleepiness | — | 84.4 | 95.3 | 98.7 | — | 97.2 |
