Table 3 Sleep parameters with significant differences by sex, age, or race
Sleep quality in the last 24 h (0–10 scale, 10 = worst possible sleep), mean (SD) | Sleep quality in the last days (0–10 scale, 10 = worst possible sleep), mean (SD) | Daytime sleepiness (0–10 scale, 10 = most daytime sleepiness), mean (SD) | Average number of hours of sleep per night, mean (SD) | |
|---|---|---|---|---|
Sex | ||||
Male | 5.7 (2.5) | 6.0 (2.2) | 3.1 (2.3) | 6.7 (1.2) |
Female | 5.0 (2.5) | 4.9 (2.3) | 4.6 (3.0) | 6.5 (1.6) |
p value | 0.07 | 0.002 | 0.001 | 0.38 |
Age | ||||
≤ 50 years | 5.3 (2.7) | 5.8 (2.4) | 4.1 (2.6) | 6.5 (1.4) |
> 50 and < 65 years | 5.5 (2.5) | 5.7 (2.3) | 3.4 (2.5) | 6.6 (1.2) |
≥ 65 years | 5.8 (2.6) | 5.9 (2.1) | 3.0 (2.6) | 6.9 (1.4) |
p value | 0.57 | 0.92 | 0.03 | 0.17 |
Race | ||||
White | 5.4 (2.5) | 5.6 (2.3) | 3.4 (2.5) | 6.7 (1.3) |
Non-White | 5.8 (2.8) | 6.1 (2.2) | 3.9 (2.9) | 6.5 (1.5) |
p value | 0.39 | 0.19 | 0.27 | 0.31 |