Table 1.
Description of 73 participating police officers. [SD=standard deviation.]
| N | % | Mean (SD) | Range | |
|---|---|---|---|---|
| Age (years) | 73 | 38 (10) | 25–62 | |
| Tenure within the police force (years) | 73 | 11 (10) | 1–32 | |
| Night shift work experience (years) | 11 (8) | 1–30 | ||
| <3 | 16 | 22 | ||
| 3–10 | 27 | 38 | ||
| >10 | 29 | 40 | ||
| Physical activity | ||||
| Physically inactive | 3 | 4 | ||
| Light | 13 | 18 | ||
| Moderate | 34 | 47 | ||
| High | 22 | 31 | ||
| Self-rated overall health | ||||
| Excellent | 22 | 31 | ||
| Quite good | 34 | 47 | ||
| Good | 14 | 19 | ||
| Less good | 2 | 3 | ||
| Poor | 0 | 0 | ||
| General job satisfaction | ||||
| Very dissatisfied | 3 | 4 | ||
| Dissatisfied | 0 | 0 | ||
| Satisfied | 29 | 40 | ||
| Very satisfied | 41 | 56 | ||
| Diurnal type | ||||
| Morning | 10 | 14 | ||
| More morning than evening | 10 | 14 | ||
| More evening than morning | 38 | 52 | ||
| Evening | 15 | 21 |