Table 1 Characteristics of the study population (n = 963)
Variable | N (%) | Mean (SD) |
|---|---|---|
Age (years) | 963 (100) | 44.9 (10.0) |
Seniority (years) | 911 (95) | 13.2 (10.4) |
BMI in kg/m2 | 947 (98) | 27.2 (4.9) |
Aerobic capacity (ml O2/min/kg) | 718 (75) | 32.0 (9.0) |
Alcohol consumption (units/week) | 952 (99) | 3.4 (5.1) |
Days with accelerometer measurements | 963 (100) | 4.1 (1.3) |
Accelerometer-derived leisure hoursa | 963 (100) | 7.4 (2.6) |
Accelerometer-derived work hoursa | 963 (100) | 7.6 (2.1) |
Sex | ||
Men | 528 (55) | |
Women | 435 (45) | |
Smoking-status | ||
Smoker | 319 (33) | |
Non-smoker | 644 (67) | |
Shift work | ||
Fixed day job | 723 (75) | |
Non-fixed day job | 214 (22) | |
Working sector | ||
Cleaning | 175 (18) | |
Manufacturing | 569 (59) | |
Transportation | 69 (7) | |
Health Service | 19 (2) | |
Assemblers | 33 (3) | |
Construction | 40 (4) | |
Garbage Collectors | 29 (3) | |
Mobile Plant Operators | 11 (1) | |
Otherb | 20 (2) | |