Table 1 Descriptive data for male (N = 108) and female (N = 83) blue-collar workers

Age (years); m (SD)

43.8 (9.5)

46.9 (9.3)

Body mass index (kg/m²); m (SD)

26.8 (4.4)

25.8 (5.9)

Measured working days per worker; m (SD)

2.0 (0.9)

1.9 (0.8)

Wear-time work (hours/day); m (SD)

8.4 (2.6)

8.3 (2.1)

Wear-time leisure (hours/day); m (SD)

9.2 (2.9)

8.6 (2.2)

Occupation, N

 Health service

0

14

 Assemblers

4

27

 Cleaners

5

26

 Construction

38

0

 Manufacturing

31

16

 Garbage collectors

19

0

 Mobile plant operators

10

0

 Other occupation

1

0