Table 1.
Baseline and clinical characteristics of the participants in the bright light therapy group and the control group (N = 60).
| Variable | Control (n = 30) | Bright Light Therapy (n = 30) | p |
|---|---|---|---|
| Age, year, mean (SD) | 63.1 (9.1) | 61.0 (9.4) | 0.396 |
| Sex | 0.121 | ||
| Male | 12 (40) | 18 (60) | |
| Female | 18 (60) | 12 (40) | |
| Educational level | 0.108 | ||
| Junior high school or below | 22 (73) | 16 (53) | |
| Senior high school or above | 8 (27) | 14 (47) | |
| Employed | 0.754 | ||
| No | 24 (80) | 23 (77) | |
| Yes | 6 (20) | 7 (23) | |
| Engaged in regular outdoor activity | 0.796 | ||
| No | 15 (50) | 14 (47) | |
| Yes | 15 (50) | 16 (53) | |
| Outdoor activity/week, number of times, mean (SD) | 0.97 (1.27) | 1 (1.14) | 0.915 |
| Time on hemodialysis, months, mean (SD) | 95.0 (60.5) | 87.5 (87.2) | 0.700 |
| Hypertension | 21 (70) | 15 (50) | 0.114 |
| Cardiovascular disease | 6 (20) | 7 (23) | 0.754 |
| Diabetes | 17 (57) | 15 (50) | 0.605 |
| Cerebrovascular disease | 1 (3) | 2 (7) | >0.999 |
| Cancer | 1 (3) | 2 (7) | >0.999 |
SD: standard deviation. All values are n (%) unless otherwise stated.