Table 1 Participants' baseline information categorized by sleep duration
Sleep duration | Total | ≤ 5 h | 6–8 h | ≥ 9 h | P-value |
|---|---|---|---|---|---|
Number | 23,785 | 1717 | 19,554 | 2514 | |
Age | 58.5 (7.4) | 57.3 (7.5) | 58.4 (7.4) | 60.1 (7.3) | < 0.001 |
Men (%) | 13,561 (57.0%) | 942 (54.9%) | 11,230 (57.4%) | 1389 (55.3%) | 0.020 |
White (%) | 20,617 (86.7%) | 1390 (81.0%) | 17,014 (87.0%) | 2213 (88.0%) | < 0.001 |
Townsend Deprivation Index | − 0.6 (3.4) | 0.7 (3.7) | − 0.8 (3.3) | − 0.5 (3.4) | < 0.001 |
Blood glucose | 7.7 (3.0) | 7.8 (3.2) | 7.7 (3.0) | 7.8 (3.2) | 0.481 |
HbA1C | 51.2 (14.4) | 52.2 (14.6) | 51.0 (14.3) | 52.2 (14.7) | < 0.001 |
HDL | 1.3 (0.3) | 1.2 (0.3) | 1.3 (0.3) | 1.2 (0.3) | 0.005 |
LDL | 3.0 (0.9) | 3.0 (0.9) | 3.0 (0.9) | 2.9 (0.9) | < 0.001 |
Triglyceride | 2.1 (1.2) | 2.2 (1.3) | 2.1 (1.2) | 2.2 (1.2) | < 0.001 |
Diastolic blood pressure | 82.8 (9.8) | 82.8 (9.8) | 83.1 (9.8) | 82.6 (9.9) | 0.307 |
Systolic blood pressure | 142.3 (17.6) | 141.2 (17.2) | 142.3 (17.6) | 142.5 (17.6) | 0.017 |
TC | 4.9 (1.2) | 4.9 (1.2) | 4.9 (1.2) | 4.8 (1.2) | < 0.001 |
Body mass index | 30.8 (5.9) | 32.1 (6.2) | 30.6 (5.8) | 31.5 (6.2) | < 0.001 |
Current drinker (%) | 20,355 (85.7%) | 1360 (79.6%) | 16,918 (86.7%) | 2077 (82.7%) | < 0.001 |
Current smoker (%) | 2562 (10.8%) | 272 (15.9%) | 2018 (10.4%) | 272 (10.9%) | < 0.001 |
Hypertension (%) | 13,435 (56.5%) | 1050 (61.2%) | 10,833 (55.4%) | 1552 (61.7%) | < 0.001 |
Antihypertensives (%) | 6931 (29.1%) | 502 (29.2%) | 5628 (28.8%) | 801 (31.9%) | 0.006 |
Lowering lipid drugs (%) | 7913 (33.3%) | 536 (31.2%) | 6508 (33.3%) | 869 (34.6%) | 0.076 |
Other sleep behaviour traits | |||||
Early chronotype (%) | 13,007 (54.7%) | 944 (55.0%) | 10,838 (55.4%) | 1225 (48.7%) | < 0.001 |
Never/rarely insomnia (%) | 5456 (22.9%) | 161 (9.4%) | 4628 (23.7%) | 667 (26.5%) | < 0.001 |
No self-reported Snoring (%) | 11,704 (49.2%) | 885 (51.5%) | 9637 (49.3%) | 1182 (47.0%) | 0.013 |
No self-reported daytime sleepiness (%) | 15,771 (66.3%) | 1014 (59.1%) | 13,275 (67.9%) | 1482 (58.9%) | < 0.001 |