Table 1.

Variables and assignments

Variables	Assignments
Utilization of essential public health services:
Community annually free physical examinations	0 = no; 1 = yes
Chronic disease follow-up services	0 = no; 1 = yes
Demographic and behavioral factors
Age(years)	1 = 60-65; 2 = 65-70; 3 = 70-80; 4 = >80
Ethnicity	1 = Han; 2 = Else
Daily exercise time (minutes)	1 = <30; 2 = 30-60; 3 = >60
Floating factors:
Floating range	1 = cross-provincial; 2 = cross-city; 3 = cross-county; 4 = cross-border
Floating reason	1 = employment; 2 = caring children; 3 = treatment; 4 = retirement; 5 = else
Health factors:
Health status	1 = health; 2 = general health; 3 = unhealth but self-care; 4 = no self-care
Chronic disease	1 = yes; 2 = no
Social support factors:
Numbers of local friends	1 = 0; 2 = 1-5; 3 = >5
Health insurance	1 = yes; 2 = no
Family factors:
Household monthly expenditure	1 = <¥2000; 2 = ¥2000-5000; 3 = >¥5000
Household monthly income after tax	1 = <¥5000; 2 = ¥5000-10000; 3 = >¥10000