Table 5.

Factors associated with work-related accumulated fatigue—results of ordinal logistic regression modeling.

Variables	β	95% Confidence Interval		Wald	OR	p
		Lower	Upper
Threshold *
(Low)	−0.887	−1.206	−0.568	29.667		<0.001
(A little high)	−0.184	−0.499	0.132	1.297		0.255
(High)	0.829	0.510	1.147	26.045		<0.001
Gender
Men	0.321	0.144	0.497	12.650	1.379	<0.001
Women	Reference
Age (years)
>45	0.060	−0.345	0.465	0.084	1.062	0.772
30–45	0.397	0.137	0.657	8.929	1.487	0.003
<30	Reference
Professional title
Senior	0.852	0.380	1.324	12.509	2.344	<0.001
Middle	0.799	0.407	1.190	15.980	2.223	<0.001
Junior title	0.574	0.245	0.903	11.694	1.775	0.001
No professional title	Reference
Monthly salary (Yuan)
>8000	−0.911	−1.206	−0.617	36.767	0.402	<0.001
5000–8000	−0.272	−0.485	−0.058	6.232	0.762	0.013
<5000	Reference
Location
Eastern	−0.538	−0.758	−0.318	23.005	0.584	<0.001
Central	−0.377	−0.594	−0.160	11.566	0.686	0.001
Western	Reference

* Threshold indicates where the latent variable is cut to make the four groups that we observe in our data.