Table 1.

SC questionnaires

Questionnaire 1: Trust in people in a community
1.	Do you think you are discriminated against because of your diabetes?	1	2	3	4	5
2.	Would you say that mostly people try to be helpful?	1	2	3	4	5
3.	Do you think most people would try to take advantage of you if they get a chance?	1	2	3	4	5
4.	Do you listen other’s concerns and complaints?	1	2	3	4	5
5.	Do you look after someone when he/she is sick and has to stay in bed for a few days?	1	2	3	4	5
Questionnaire 2: Social support (If you answer “Yes,” please let us know who is that “someone.”)
6.	Do you have someone who listens to your concerns and complaints?	Yes/No (Housemates, Relatives, Friends, Medical Staff)
7.	Do you have someone who looks after you when you are sick and in bed for a few days?	Yes/No (Housemates, Relatives, Friends, Medical Staff)
8.	Do you have someone who acknowledges your existence and value?	Yes/No (Housemates, Relatives, Friends, Medical Staff)
9.	Do you think someone provides you proper information about your ills and health conditions?	Yes/No (Housemates, Relatives, Friends, Medical Staff)
Questionnaire 3: Social relationships (Please answer how many times you do each of the following per week on average except for item 17.)
10.	Do you participate in political activities, organizations, or groups?	0	1–3	4–6	Over 7
11.	Do you participate in a volunteer group?	0	1–3	4–6	Over 7
12.	Do you participate in a citizens’ group or organization?	0	1–3	4–6	Over 7
13.	Do you participate in religious activities, organizations or groups?	0	1–3	4–6	Over 7
14.	Do you participate in a sports club or groups?	0	1–3	4–6	Over 7
15.	Do you participate in your community’s meetings?	0	1–3	4–6	Over 7
16.	Do you participate in a hobby or leisure activity club?	0	1–3	4–6	Over 7
17.	How many times do you meet your friends per month?	0	1–3	4–6	Over 7