Table 4 Prevalence Ratios with 95% confidence interval considering pain in the neck and shoulder region (n = 14,327)

Age

Per year

1.003 (1.002–1.005)

Gender

Women

1.571 (1.518–1.625)

Weekly working hours

Per h

0.993 (0.990–0.995)

Psychosocial workload (score)

Per unit

1.010 (1.009–1.012)

Never

Rarely

Sometimes

Often

Works in awkward postures

1 (ref.)

0.974 (0.922–1.029)

1.009 (0.953–1.068)

(answer split into 3 dummy variables)

1) Often performs overhead work

1 (ref.)

–

–

1.038 (0.960–1.122)

2) Often when bending

1 (ref.)

–

–

1.120 (1.047–1.199)

3) Often when kneeling

1 (ref.)

–

–

0.989 (0.922–1.060)

Manual handling of heavy loads

1 (ref.)

1.009 (0.961–1.060)

1.010 (0.951–1.072)

1.119 (1.058–1.184)

Manual handling operations

1 (ref.)

0.966 (0.906–1.029)

0.951 (0.895–1.011)

1.021 (0.973–1.071)

Climatic workload

1 (ref.)

1.006 (0.951–1.065)

1.107 (1.053–1.165)

1.176 (1.119–1.236)