Table 1.
Sample Characteristics
| Total sample | Active | Placebo | |
|---|---|---|---|
| Variable | M (SD) | M (SD) | M (SD) |
| Age | 44.93 (11.83) | 40.89 (9.36) | 51.00 (13.33) |
| Adherence: days initiated treatment | 21.5 (6.1) | 19.67 (5.81) | 24.17 (6.01) |
| Adherence: minutes per treatment day in prescribed window | 35.2 (6.3) | 32.45 (5.30) | 39.22 (5.81) |
| Variable | n (%) | n (%) | n (%) |
| Male | 7 (46.7) | 5 (55.6) | 2 (33.3) |
| Ethnicity | |||
| Non-Hispanic | 11 (73.3) | 6 (66.7) | 5 (83.3) |
| Hispanic / Latino | 4 (26.7) | 3 (33.3) | 1 (16.7) |
| Race | |||
| White | 4 (26.7) | 4 (44.4) | 0 (0.0) |
| Black / African American | 8 (53.3) | 3 (33.3) | 5 (83.3) |
| Mixed | 2 (13.3) | 1 (11.1) | 1 (16.7) |
| Decline to answer | 1 (6.7) | 1 (11.1) | 0 (0.0) |
| Marital Status | |||
| Single | 12 (80.0) | 7 (77.8) | 5 (83.3) |
| Married / domestic partnership / engaged | 3 (20.0) | 2 (22.2) | 1 (16.7) |
| Highest Degree | |||
| Less than high school | 2 (13.3) | 2 (22.2) | 0 (0.0) |
| High school / GED | 4 (26.7) | 1 (11.1) | 3 (50.0) |
| Vocational / Associates Degree / Some college | 6 (40.0) | 5 (55.5) | 1 (16.7) |
| Baccalaureate or Master’s degree | 3 (20.0) | 1 (11.1) | 2 (33.3) |
| Index trauma type | |||
| Physical / Sexual assault | 5 (33.3) | 2 (22.2) | 3 (50.0) |
| Being shot / Shot at | 4 (26.7) | 4 (44.4) | 0 (0.0) |
| Witnessing serious harm or death of others | 3 (20.0) | 2 (22.2) | 1 (16.7) |
| Combat | 2 (13.3) | 1 (11.1) | 1 (16.7) |
| Motor vehicle accident | 1 (6.7) | 0 (0.0) | 1 (16.7) |
Note. Total sample N = 14. Active group n = 9. Placebo group n = 6. “Adherence: days initiated treatment” refers to the number of days that participants completed part or all of the morning light treatment out of the 28 treatment days. “Adherence: minutes per treatment day in prescribed window” refers to the minutes of light that participants received in the treatment window on days when they initiated treatment.