Table 2 Basic statistics of the psychological and work related variables in the participants (n = 187).

	Mean	Median	SD	Observed Min–max	Original scale Min‐max
Depressive symptoms (total score)*	17.9	16.0	13.7	0–57	0–60
Fear‐avoidance belief about work*	18.3	18.6	4.1	7–24	0–28
Self‐efficacy†	12.6	14.0	3.5	0–16	0–16
General health†			9.7
Physical health	33.2	33.3	9.7	10.0–65.2	0–100
Mental health	44.2	44.9	10.8	16.0–65.2	0–100
Perceived pain*	4.8	5.0	2.6	0–10	0–10
Co‐morbidity*	3.8	0	7.1	0–38.3	0–100
Perceived physical workload*	3.9	4.0	1.0	1–5	1–5
Work related physical factors*			7.3
Heavy loading	16.6	17.0	6.2	0–25	0–25
Repetitive movements	19.7	25.0	7.3	0–25	0–25
Vibration of body parts	6.6	2.5	8.1	0–25	0–25
Work related psychosocial factors*
Decision latitude	40.7	42.0	8.3	17–57	12–60
Psychological demands	41.3	40.0	8.2	20–60	12–60

*Higher score indicates worse scores.

†Higher score indicates better scores.