Table 1.
Participant Characteristics (mean ± standard error or n (%)) by Sleep Duration
| Sleep Duration (Hours) | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 2 - 4 | 5 | 6 | 7 | 8 | 9 | ≥ 10 | F stat | df | p-value† | |
| n | 61 (4.1) | 110 (7.4) | 318 (21.3) | 406 (27.1) | 430 (28.7) | 104 (7.0) | 67 (4.5) | --- | ||
| Age | 66.5± 0.9 | 69.5 ± 1.0 | 68.9 ± 0.5 | 68.4 ± 0.4 | 70.0 ± 0.3 | 71.0 ± 0.8 | 70.2 ± 1.4 | 5.08 | 6, 10 | 0.0122 |
| Male | 21 (34.1) | 50 (37.3) | 147 (42.9) | 210 (52.6) | 208 (44.7) | 54 (50.2) | 27 (34.2) | 1.88 | 6, 10 | 0.1799 |
| White | 16 (55.7) | 35 (62.8) | 131 (69.9) | 229 (84.9) | 241 (82.2) | 68 (86.2) | 42 (84.1) | 7.97 | 6, 10 | 0.0024 |
| ≥ College | 20 (47.8) | 47 (55.4) | 165 (61.1) | 235 (69.0) | 233 (61.4) | 64 (69.8) | 26 (56.7) | 1.88 | 6, 10 | 0.1796 |
| Obese | 27 (47.4) | 47 (51.7) | 118 (41.4) | 148 (36.8) | 146 (33.5) | 42 (41.8) | 25 (37.5) | 2.07 | 6, 10 | 0.1477 |
| DM | 12 (13.3) | 29 (22.8) | 79 (25.7) | 86 (17.3) | 93 (17.6) | 29 (20.0) | 16 (22.3) | 1.28 | 6, 10 | 0.3492 |
| HTN | 37 (41.4) | 77 (72.9) | 210 (65.1) | 234 (53.1) | 281 (63.9) | 71 (65.2) | 44 (70.8) | 2.34 | 6, 10 | 0.1131 |
| Dep. Sx. | 8.1 ± 1.1 | 4.6 ± 0.5 | 4.0 ± 0.2 | 2.2 ± 0.2 | 2.9 ± 0.3 | 3.8 ± 0.6 | 3.0 ± 0.5 | 6.02 | 6, 10 | 0.0067 |
| Sedative Use | 5 (6.4) | 12 (17.3) | 25 (8.1) | 25 (6.3) | 40 (11.6) | 16 (22.2) | 8 (12.3) | 6.37 | 6, 10 | 0.0055 |
Key: ≥ College = have at least some college education, Dep. Sx. = Depressive Symptoms, DM = Diabetes Mellitus, HTN = Hypertension
†
Survey-weighted linear and logistic regression; P-value is of the F-statistic, df = degrees of freedom, F stat = F statistic