Table 1. Sociodemographic and Clinical Characteristics of Participants.
| Characteristic | No (%) | ||
|---|---|---|---|
| Behavioral therapy (n = 104) | Zolpidempidem (n = 107) | Total sample (n = 211) | |
| Study site | |||
| Université Laval, Québec | 59 (57) | 62 (58) | 121 (57) |
| National Jewish Health, Denver | 45 (43) | 45 (42) | 90 (43) |
| Age, mean (SD), y | 45.9 (14.4) | 45.4 (15.5) | 45.6 (14.9) |
| Sex | |||
| Female | 64 (62) | 68 (64) | 132 (63) |
| Male | 40 (39) | 39 (36) | 79 (37) |
| Race/ethnicity | |||
| White | 92 (88) | 90 (84) | 182 (86) |
| Black | 6 (6) | 8 (8) | 14 (7) |
| Other | 2 (2) | 2 (2) | 4 (2) |
| Hispanic | 4 (4) | 7 (7) | 11 (5) |
| Education, mean (SD), y | 16.3 (2.6) | 16.0 (3.8) | 16.1 (3.3) |
| Occupation | |||
| Employed | |||
| Full time | 53 (52) | 57 (53) | 110 (52) |
| Part time | 11 (11) | 25 (23) | 36 (17) |
| Student | 6 (6) | 4 (4) | 10 (5) |
| Unemployed | 13 (13) | 4 (4) | 17 (8) |
| Retired | 20 (19) | 17 (16) | 37 (18) |
| Duration of insomnia, mean (SD), y | 13.9 (12.3) | 12.5 (12.6) | 13.2 (12.5) |
| Psychiatric comorbidity | 36 (35) | 38 (36) | 74 (35) |
| Medical comorbidity | 66 (67) | 71 (69) | 137 (68) |
| Use of sleep-promoting prescribed medication in the last year | 25 (26) | 24 (23) | 49 (25) |
| Use of psychotropic medication at baseline (other than sleep-promoting) | 18 (18) | 17 (16) | 35 (17) |