Table 5.

Multiple Logistic regression analysis of VAS level with hematologic indexes and some factor scores in SF-36.

	β	${\overline{\text{S}}}_{\text{x}}$	Wald χ2	P value	OR	95%CI
Intercept	8.271	5.182	2.548	0.110
PPD exposed levels
Lower = 0					1
Middle = 1	0.230	0.893	0.066	0.797	1.259	(0.219, 7.240)
Higher = 2	2.240	0.869	6.640	0.010	9.394	(1.710, 51.622)
Working age	0.031	0.042	0.553	0.457	1.031	(0.951, 1.119)
Gender
Female = 0					1
Male = 1	− 2.170	0.735	8.721	0.003	0.114	(0.027, 0.482)
Hair dye history
Yes = 0					1
No = 1	− 2.399	0.737	10.598	0.001	0.091	(0.021, 0.385)
Ethnic group
Han = 0					1
Others = 1	− 1.648	0.874	3.555	0.059	0.192	(0.035, 1.067)
Educational condition
Primary school and lower level = 1					1
Junior high school level = 2	− 1.242	1.127	1.214	0.271	0.289	(0.032, 2.632)
Senior middle school level = 3	− 3.197	1.337	5.718	0.017	0.041	(0.003, 0.562)
College and higher level = 4	− 3.418	1.544	4.904	0.027	0.033	(0.002, 0.675)
SF-36
RP	− 0.034	0.047	0.519	0.471	0.967	(0.883, 1.059)
BP	0.055	0.024	5.337	0.021	1.056	(1.008, 1.106)
GH	− 0.052	0.025	4.206	0.040	0.950	(0.904, 0.998)
VT	− 0.007	0.031	0.051	0.821	0.993	(0.935, 1.054)
MH	− 0.008	0.042	0.038	0.845	0.992	(0.914, 1.076)
HT	− 0.017	0.015	1.389	0.239	0.983	(0.955, 1.012)