Table 1.

General characteristics of participants.

ID	Sex	Age	Education	Residence	Household Members	Number of Chronic Diseases	Occupation	Subjective Socioeconomic Status	Religion
1	Male	73	High school	Seoul	Married son	2	Part-time job	Middle	Catholic
2	Female	75	None	Seoul	Alone	7	None	Low	None
3	Female	80	Elementary school	Seoul	Alone	5	Part-time job	Low	None
4	Female	69	High school	Seoul	Alone	2	None	Low	Protestant
5	Female	80	High school	Seoul	Spouse	2	Part-time job	Low	Buddhist
6	Female	76	None	Seoul	Alone	3	Part-time job	Low	None
7	Female	74	Elementary school	Seoul	Alone	1	Part-time job	Middle	None
8	Female	66	High school	Daejeon	Spouse	1	Sanitation worker	Low	None
9	Female	65	Elementary school	Daejeon	Married daughter	3	Sanitation worker	Low	None
10	Female	78	Elementary school	Daejeon	Alone	1	None	Low	None
11	Male	69	Middle school	Seoul	Spouse	3	Part-time job	Low	Protestant
12	Female	77	High school	Gyeryong-si	Married son	3	Part-time job	Low	Buddhist
13	Male	76	High school	Gyeryong-si	Unmarried child	1	Part-time job	Middle	None