Table 4.

Results of hierarchical logistic regression analyses of participants with a suicide plan with a suicide attempt as the dependent variable (N=251)

Independent variables	Model 1			Model 2			Model 3			Model 4
	B	Wald	OR	B	Wald	OR	B	Wald	OR	B	Wald	OR
Sociodemographic factors
Age (years)	-0.043	1.653	0.958	-0.032	0.895	0.969	-0.025	0.532	0.975	-0.026	0.558	0.975
Gender (female)	0.220	0.284	1.246	0.371	0.786	1.449	0.510	1.377	1.666	0.512	1.389	1.669
Marital status (single)	-0.133	0.104	0.875	-0.220	0.277	0.802	-0.262	0.390	0.769	-0.258	0.374	0.773
Educational level (high)	-0.086	0.011	0.917	-0.163	0.038	0.849	-0.364	0.183	0.695	-0.372	0.191	0.689
Job duration	0.027	0.760	1.027	0.021	0.440	1.021	0.022	0.505	1.022	0.022	0.522	1.022
Job grade (high)	0.276	0.293	1.318	0.339	0.426	1.404	0.447	0.684	1.563	0.452	0.695	1.571
Job stress
KOSS-SF				0.031	5.641	1.031*	0.024	2.766	1.024	0.025	2.787	1.025
Psychiatric symptoms
CES-D							-0.022	0.888	0.978	-0.021	0.771	0.979
BAI							0.054	5.915	1.056*	0.054	5.812	1.056*
Resilience
K-CD-RISC										0.002	0.033	1.002
Statistics of the model
-2LL	239.469			233.715			225.694			225.662
Model χ2	2.601 (df=6)			8.356 (df=7)			16.376 (df=9)			16.409 (df=10)
Step χ2	2.601 (df=6)			5.754 (df=1)*			8.020 (df=2)*			0.033 (df=1)
Nagelkerke R2	0.017			0.053			0.102			0.102
Classification accuracy	81.3			81.3			81.7			81.3

^*p<0.05,

^**p<0.01,

^***p<0.001.

OR: odd ratio, KOSS-SF: Korean Occupational Stress Scale-Short Form, CES-D: Center for Epidemiologic Studies Depression scale, BAI: Beck Anxiety Inventory, K-CD-RISC: Korean version of the Connor-Davidson Resilience Scale