smokers (n = 122)

non-smokers

(n = 1057)

p value

Quantitative overload

5.4 (1.8)

5.3 (1.8)

0.691

Qualitative overload

5.0 (1.7)

4.9 (1.6)

0.519

Physical overload

2.0 (0.8)

1.9 (0.8)

0.731

Job control

7.3 (1.8)

7.4 (1.8)

0.806

Skill discretion

3.2 (0.7)

3.1 (0.7)

0.307

Interpersonal relationship

8.6 (1.8)

8.7 (1.7)

0.792

Workplace environment

2.8 (0.9)

2.9 (0.9)

0.293

Job fitness

2.8 (0.7)

2.8 (0.7)

0.585

Job satisfaction

3.1 (0.8)

3.1 (0.7)

0.826

Total

40.1 (5.9)

40.2 (5.6)

0.973