Table 1. Demographic information of survey participants in two rounds of community research.

	First community research (n = 345)	Second community research (n = 657)
Community ID (n, %)
City S	120 (34.8%)	112 (17.1%)
City T	225 (65.2%)	216 (32.9%)
City K	0	329 (50.1%)
Age (mean, SD)	67.4, 8.2	66.3, 8.5
Gender (n, %)
Male	173 (50.1%)	319 (48.5%)
Female	172 (49.9%)	338 (51.5%)
Hypertension (n, %)	278 (80.6%)	528 (80.4%)
Diabetes (n, %)	160 (46.4%)	372 (56.6%)
Employment status (n, %)
Retired	307 (89.0%)	399 (60.7%)
Employed	22 (6.4%)	122 (18.6%)
Self-employed	6 (1.7%)	26 (4.0%)
Unemployed	10 (2.9%)	34 (5.2%)
Others*	0	76 (11.6%)
Marital status (n, %)
Married	299 (86.7%)	602 (91.6%)
Spouse deceased	37 (10.7%)	40 (6.1%)
Divorced	5 (1.4%)	11 (1.7%)
Not married	4 (1.2%)	4 (0.6%)
Education level (n, %)
≤ Primary school	91 (26.4%)	322 (49.0%)
Middle school	145 (42.0%)	211 (32.1%)
High school	88 (25.5%)	89 (13.6%)
≥ College	21 (6.1%)	35 (5.3%)

* Other employment status included freelancers, farmers, and veterans.