TABLE 2.
Sleep patterns by race
| Overall | AA | White | ||
|---|---|---|---|---|
| Sleep variables | N = 76 | N = 28 | N = 48 | P‐value |
| Workday hours of sleep c | 6.62 (1.28) | 5.82 (1.26) | 7.09 (1.04) | .00001 |
| Weekend hours of sleep c | 7.19 (1.31) | 6.52 (1.65) | 7.59 (0.86) | .003 |
| Average hours of sleep c | 6.79 (1.17) | 6.02 (1.18) | 7.23 (0.91) | .000004 |
| Average hours of sleep > = 7 hours (yes) d | 40 (52.6) | 5 (17.86) | 35 (72.92) | .003 |
| Sleep quality rate c | 2.82 (1.04) | 3.11 (1.17) | 2.65 (0.93) | .062 |
| Adequate Sleep (yes) d (n = 74) | 17 (22.4) | 12 (42.86) | 5 (10.87) b | .003 |
| Sleep adequacy a,c | 4.66 (1.72) | 4.64 (1.95) | 4.67 (1.60) | .954 |
| Somnolence a,c | 3.80 (1.14) | 3.46 (0.84) | 4.00 (1.26) | .048 |
| Sleep Problems Index a,c (n = 58) | 18.74 (5.45) | 17.72 (5.78) | 19.20 (5.31) | .344 |
| Somnolence Problems Index a,c (n = 69) | 11.58 (2.54) | 11.85 (2.76) | 11.40 (2.40) | .479 |
Note: Participants completed a detailed sleep questionnaire. Comparisons between groups using asymp. sig (two‐tailed) calculated with Independent T‐tests after testing for equal variance or Fisher's exact test. Bolded P‐values indicate significance. Sleep quality rates on a scale of 1‐5: 1, excellent; 5, poor. Adequate sleep considered as average hours of sleep within 15% of self‐reported optimal hours of sleep. aScoring adapted from Ref., 28 with greater values representing worse sleep. bn = 46; values presented as cmean (SD) or dn (percent).