Table 3.

Regression analysis results after adjusting sex, educational level, and HAM-D severity

NEO-PI-R	Extraversion			Openness			Agreeableness			Conscientiousness			Neuroticism
Age group	b*	SE	p-value	b*	SE	p-value	b*	SE	p-value	b*	SE	p-value	b*	SE	p-value
20–34		(ref.)			(ref.)			(ref.)			(ref.)			(ref.)
35–49	2.413	2.941	0.414	2.413	2.941	0.414	5.609	3.513	0.113	4.048	3.435	0.241	-5.426	3.633	0.138
50–64	4.604	2.760	0.098	4.604	2.760	0.098	8.933	3.297	0.008**	8.335	3.224	0.011**	-13.211	3.410	0.000**
65+	-2.241	3.570	0.531	-2.241	3.570	0.531	5.543	4.264	0.196	2.371	4.170	0.571	-7.577	4.410	0.088
K-DSQ		Immature			Adaptive			Self-inhibiting				Conflict-avoiding
Age group		b*	SE	p-value	b*	SE	p-value	b*		SE	p-value	b*	SE	p-value
20–34			(ref.)			(ref.)				(ref.)			(ref.)
35–49		-23.172	7.537	0.003**	5.601	3.66	0.129	-5.874		3.899	0.135	-2.682	2.061	0.196
50–64		-17.256	7.074	0.016**	3.913	3.435	0.257	-6.579		3.659	0.075	-2.536	1.935	0.192
65+		-15.487	9.149	0.093	2.978	4.443	0.504	-7.438		4.733	0.119	0.083	2.502	0.973
Coping strategies		Problem-focused			Seeking social support			Emotion-focused				Wishful thinking
Age group		b*	SE	p-value	b*	SE	p-value	b*		SE	p-value	b*	SE	p-value
20–34			(ref.)			(ref.)				(ref.)			(ref.)
35–49		4.130	3.638	0.259	0.822	1.210	0.498	1.434		1.722	0.407	1.538	1.692	0.365
50–64		9.813	3.414	0.005**	2.446	1.136	0.033**	3.915		1.616	0.017**	4.206	1.588	0.009**
65+		9.549	4.416	0.033**	1.866	1.469	0.207	4.257		2.090	0.044**	3.654	2.054	0.078

^*Coefficients adjusted for sex, educational level and HAM-D severity,

^**p<0.05.

HAM-D: Hamilton Depression Rating Scale, K-DSQ; Korean-Defense Style Questionnaire, NEO-PI-R; Neuroticism-Extraversion-Openness Personality Inventory-Revised