Table 4 Variables assignment

Old-age care mode

Very appropriate/Appropriate = 0, Generally/Inappropriate/Very inappropriate = 1

Age

40 < Age < = 55 = 1, 55 < Age < = 70 = 2, Age > 70 = 3

Residence

Urban = 0, Rural = 1

Education level

Illiteracy = 1, Primary school = 2, Junior high school = 3, High school/Technical school = 4, College degree and above = 5

Marital status

Married = 1, Unmarried or divorced, et al. = 2, Widowed = 3,

Affordable medical and pension costs

500and below = 1, 501–1000 = 2, 1001–1500 = 3, 1501and above = 4

Number of children

No = 1, One = 2, Two = 3, Three = 4, Fore and above = 5

Relationship between family members

Very discordant = 1, Discordant = 2, Generally = 3, Harmonious = 4, Very harmonious = 5

Relationship with neighbors

Very discordant = 1, Discordant = 2, Generally = 3, Harmonious = 4, Very harmonious = 5