Table 1.

Eight questions to measure status of social integration

	Items	Assignment methods
1	Have you or your family participated in cultural and sports activities, social activities, family planning association activities, health education activities, and elections in the local community this year?	A score from 0 to 5 based on participation in these five items
2	During your spare time, with whom do you have the most contact, locally?	Rarely have contact with people = 0, fellow villagers whose household registration is still in sending areas = 1, fellow villagers who are registered permanent residents in the local area = 2, and locals = 3; range from 0 to 3
3	I like the city I am living in presently	The answers “completely disagree,” “disagree,” “somewhat agree,” and “completely agree,” respectively assigned values 1, 2, 3, and 4
4	I pay attention to the changes in the city I am living in
5	I am willing to blend in with the locals
6	I think locals are willing to accept me
7	I feel that locals despise outsiders	The answers “completely disagree,” “disagree,” “somewhat agree,” and “completely agree,” respectively assigned values 4, 3, 2, and 1
8	Compared to the sending area, do you feel happy now?	The answers “very happy,” “happy,” “so-so,” “unhappy,” and “very unhappy,” respectively assigned values 5, 4, 3, 2, and 1