Table 1. Participant characteristics (N = 342).
| Mean ± SD or n (%) | |
|---|---|
| Demographics and anthropometricsa | |
| Age (years) | 43.1 ± 11.8 |
| Sex, female | 323 (94%) |
| Ethnicity | |
| White | 295 (86%) |
| Black | 20 (6%) |
| Asian | 14 (4%) |
| Other/missing | 13 (4%) |
| Marital status | |
| Married or equivalent | 234 (68%) |
| Single | 81 (24%) |
| Separated | 24 (7%) |
| Widowed | 3 (1%) |
| Education | |
| College certificate or diploma | 129 (38%) |
| University bachelor’s degree | 168 (49%) |
| University certificate above bachelor | 45 (13%) |
| Personal annual income (CAD) (n = 336) | |
| < $50,000 | 32 (10%) |
| $50,000–$74,999 | 111 (33%) |
| ≥ $75,000 | 193 (57%) |
| Shift type (n = 340) | |
| Fixed (days, evenings, nights) | 170 (50%) |
| Rotating (days and nights, days, nights and evenings, days and evenings) | 170 (50%) |
| Smoker | 26 (8%) |
| Menopausal (women only) | 5 (1.5%) |
| Height (cm) | 164.4 ± 6.6 |
| Body mass (kg) | 73.0 ± 15.1 |
| BMI (kg/m2) | 27.0 ± 5.5 |
| Waist circumference (cm) | 80.6 ± 11.8 |
| Resting systolic blood pressure (mmHg) | 114.5 ± 12.6 |
| Resting diastolic blood pressure (mmHg) | 74.0 ± 8.6 |
| Resting heart rate (bpm) | 68.6 ± 9.6 |
| Medical conditions (where medication has been prescribed)b | |
| Musculoskeletal pain, injury or repair | 56 (16%) |
| Depression | 31 (9%) |
| Anxiety | 24 (7%) |
| Asthma | 28 (8%) |
| Hypertension | 23 (7%) |
| Hypothyroidism | 20 (6%) |
| Gastrointestinal issues (e.g., GERD, gastritis, Crohn’s) | 20 (6%) |
| Arthritis | 16 (5%) |
| Sleep apnea | 9 (3%) |
| Dyslipidemia | 13 (4%) |
| Headaches or migraines | 13 (4%) |
| Diabetes | 6 (2%) |
| Skin disorder (psoriasis, eczema, dermatitis) | 7 (2%) |
| Allergies | 6 (2%) |
| Anemia | 4 (1%) |
| Hormonal therapy | 4 (1%) |
Notes.
- BMI
- Body mass index
- GERD
- Gastroesophageal reflux disease
- SD
- Standard deviation
- CAD
- Canadian dollars
a
Only the most frequently reported ethnicity, marital status, level of education and personal annual income are reported.
b
Only medical conditions for which more than 1% of participants were taking medications are reported.