Table 1. Sample Characteristics and Descriptive Statistics of Continuous Variables.
| Total (N = 114) | |
|---|---|
| Mean age, years (SD) | 57.92 (4.01), range: 47–67 |
| Gender (Female %) | 76.3 |
| Ethnicity (%) | |
| Caucasian | 88.6 |
| African American | 3.5 |
| Indian | 2.6 |
| Spanish | 5.3 |
| Native Language (%) | |
| English | 69.3 |
| French | 23.7 |
| Other—tested in English | 4.4 |
| Other—tested French | 2.6 |
| Education, years (SD) | 16.00 (3.30) |
| Elementary (%) | 1.8 |
| High School/ CEGEP (%) | 38.6 |
| Technical School (%) | 12.3 |
| University | 48.2 |
| Marital status (%) | |
| Single | 27.2 |
| Married | 35.1 |
| Divorced/Separated | 34.2 |
| Widowed | 3.5 |
| Employment status (%) | |
| Full-time | 10.9 |
| Part-time | 34.5 |
| Still looking | 7.3 |
| Self-employed | 7.3 |
| Retired | 40.0 |
| Self-perceived socio-economic status (%) | |
| Low | 43.7 |
| Medium | 43.7 |
| High | 12.6 |
| Medication (%) | |
| None | 71.1 |
| Blood pressure/cholesterol | 18.4 |
| Varicose veins | 0.9 |
| Glaucoma drops | 2.6 |
| Osteoporosis | 2.6 |
| Arthritis | 1.8 |
| Stomach/acid reflux | 1.8 |
| Sleep aids | 0.9 |
| CES-D (SD) | 9.68 (9.33) |
| Neuroticism (SD) | 16.81 (8.62) |
| Conscientiousness (SD) | 34.99 (6.71) |
| Subjective sleep quality (SD) | 0.91 (0.86) |
| Sleep latency (SD) | 0.89 (0.89) |
| Sleep duration (SD) | 0.57 (0.86) |
| Sleep efficiency a (SD) | 0.54 (0.91) |
| Sleep disturbances (SD) | 1.39 (0.54) |
| Use of sleep medication (SD) | 0.20 (0.63) |
| Daytime dysfunction (SD) | 0.77 (0.68) |
| Global PSQI score (SD) | 5.28 (3.45) |
| Sleep apnea symptoms (%) | 58.5 (n = 41) |
| Restless leg syndrome (%) | 36.6 (n = 41) |
Notes. CEGEP = General and vocational college; CES-D = Centre for Epidemiologic Studies Depression Scale; PSQI = Pittsburgh Sleep Quality Index.
a—this score reflected the PSQI sleep efficiency component score.