Table 4.

Factors associated with fatigue dimensions in the multiple regression models.

Fatigue dimensions	Variables retained in the model	B	SE	standard β	95% CI		P-value
General fatigue
	Frequent moving/lifting heavy loads	1.27	0.43	0.17	0.43	2.11	0.003
	Working with body in awkward positions	1.44	0.51	0.16	0.45	2.45	0.005
	Task interruptions by other people	1.26	0.39	0.17	0.50	2.03	0.001
Physical fatigue
	Frequent moving/lifting heavy loads	1.05	0.48	0.13	0.09	2.00	0.031
	Working with body in awkward positions	2.06	0.59	0.21	0.90	3.22	0.001
	BMI	0.21	0.07	0.17	0.08	0.35	0.002
Reduced activity
	Doing an excessive amount of work	−1.64	0.60	−0.15	−2.82	−0.45	0.007
	Task interruptions by other people	0.88	0.35	0.14	0.19	1.57	0.013
Reduced motivation
	Task interruptions by other people	1.54	0.38	0.22	0.79	2.28	<0.001
	Education	−1.20	0.42	−0.16	−2.03	−0.37	0.005
Mental fatigue
	Doing lots of physical efforts	1.59	0.53	0.17	0.55	2.62	0.003
	Working with body in awkward positions	1.47	0.56	0.15	0.36	2.57	0.009
	Task interruptions by other people	1.63	0.43	0.2	0.77	2.49	<0.001
	BMI	0.2	0.06	0.15	0.06	0.33	0.004
Total fatigue
	Working with body in awkward positions	7.01	1.88	0.21	3.31	10.73	<0.001
	Task interruptions by other people	6.14	1.47	0.22	3.24	9.04	<0.001
	BMI	0.73	0.23	0.17	0.27	1.19	0.002
	Education	−3.97	1.64	−0.13	−7.2	−0.73	0.017