Table 2. Sociodemographic, occupational, and health characteristics of participants according to the combination of insomnia and insufficient sleep.
| Sleep 7–9 hours | |||||
|---|---|---|---|---|---|
| Adequate sleep duration (n = 500) | Only insufficient sleep (n = 464) | Only insomnia (n = 127) | Insomnia and insufficient sleep (n = 202) | p value | |
| Age (years − mean;SD) | 40.5 (10.2) | 38.3 (9.7) | 39.8 (9.6) | 39.4 (9.2) | 0.004 |
| Income (USD; %) | |||||
| < 495 | 12.5 | 12.9 | 17.2 | 13.8 | 0.836 |
| 495–990 | 44.8 | 41.8 | 42.2 | 42.9 | |
| > 990 | 42.6 | 45.3 | 40.5 | 43.4 | |
| Marital status (% married) | 50.8 | 58.3 | 58.7 | 60.4 | 0.040 |
| Weekly work hours (mean;SD) | 53.7 (21.4) | 53.9 (18.8) | 52.4 (23.6) | 54.2 (21.1) | 0.882 |
| Work schedule (%) | |||||
| Day workers | 30.2 | 43.6 | 24.8 | 41.7 | < 0.001 |
| Night workers | 69.8 | 56.4 | 75.2 | 58.3 | |
| Smoking (%) | |||||
| Never smoked | 78.1 | 80.5 | 76.1 | 76.2 | 0.803 |
| Ex-smoker | 14.8 | 13.2 | 14.4 | 16.3 | |
| Current smoker | 7.1 | 6.3 | 9.5 | 7.4 | |
| Alcohol consumption (%) | 56.8 | 62.7 | 56.1 | 66.9 | 0.075 |
| Physical activity (% yes) | 37.7 | 32.1 | 31.7 | 26.6 | 0.024 |
| Coffee consumption (%) | |||||
| Low | 24.7 | 24.5 | 14.6 | 19.9 | 0.017 |
| Medium | 59.8 | 59.7 | 57.7 | 60.7 | |
| High | 15.5 | 15.8 | 27.6 | 19.4 | |
| Sleep satisfaction (%) | |||||
| Satisfied | 80.8 | 64.9 | 53.2 | 38.3 | < 0.001 |
| Unsatisfied | 19.2 | 35.1 | 46.8 | 61.7 | |
| BMI (Kg/m2 − %) | |||||
| Eutrophyc | 54.1 | 55.6 | 52.1 | 41.3 | 0.047 |
| Overweight | 28.7 | 25.9 | 29.3 | 34.6 | |
| Obesity | 17.2 | 18.5 | 18.6 | 24.1 | |
| Self-rated health (%) | |||||
| Good | 81.8 | 71.8 | 59.8 | 54.1 | < 0.001 |
| Poor | 18.2 | 28.2 | 40.2 | 45.9 | |