Table 1 Characteristics of employees who accepted (yes) and declined (no) participation in the intervention.

Age (years)

44 (11)

42 (12)

0.04

49 (9)

48 (11)

0.19

Height (cm)

168 (6)

170 (6)

0.01

184 (6)

183 (6)

0.61

Weight (kg)

70 (13)

69 (12)

0.62

90 (13)

88 (11)

0.42

BMI (kg m^-2)

25 (4)

24 (4)

0.09

27 (3)

26 (3)

0.47

Neck pain intensity previous 3 months (scale 0-9)

3.8 (2.3)

2.5 (2.4)

<.0001

2.7 (2.3)

1.7 (2.0)

<.0001

Shoulder (right) pain intensity previous 3 months (scale 0-9)

2.6 (2.5)

1.6 (2.1)

<.0001

1.9 (2.3)

0.8 (1.5)

<.0001

Shoulder (left) pain intensity previous 3 months (scale 0-9)

2.1 (2.4)

1.3 (2.0)

<.0001

1.4 (2.1)

0.6 (1.4)

<.0001

12-month prevalence of neck pain

94%

78%

<.0001

85%

63%

<.0001

12-month prevalence of right shoulder pain

73%

53%

<.0001

59%

35%

<.0001

12-month prevalence of left shoulder pain

64%

41%

<.0001

49%

26%

<.0001