Table 1 Sample characteristics
|  | Group 1 n = 55 | Group 2 N = 53 | Group 3 n = 48 |
|---|---|---|---|
Females, n (%) | 41 (74.5%) | 39 (73.6%) | 34 (70.8%) |
Age, mean (95% CI) | 41.7 (38.7, 44.5) | 42.2 (39.3, 45.0) | 41.8 (38.9, 44.7) |
Education beyond high school, n (%) | 34 (61.8%) | 33 (62.2%) | 46 (95.8%) |
ISI, mean (95% CI) | 11.2 (9.4, 12.8) | 11.9 (10.1, 13.8) | 4.0 (2.9, 5.4) |
PSQI, mean (95% CI) | 9.3 (8.3, 10.5) | 9.9 (8.7, 11.1) | 4.5 (3.8, 5.2) |
HSCL, mean (95% CI) | 1.75 (1.61, 1.91) | 1.74 (1.60, 1.89) | 1.23 (1.17, 1.30) |
BPI, mean (95% CI) | 4.2 (3.9, 4.6) | 4.1 (3.8, 4.5) | 0.8 (0.7, 1.1) |