Inequality in health service utilization among migrant and local children: a cross-sectional survey of children aged 0–14 years in Shenzhen, China

Table 1 Coding of the independent variables

Variable	Assignment
Gender	Male = 1; female = 2
Household registration	Local child = 1; migrant children = 2
Family annual income	0 to 0.15 million yuan = 1; 0.15 to 0.5 million yuan = 2; 0.5 to 1 million yuan = 3; more than 1 million yuan = 4
Medical insurance of Child	Basic health insurance only =1; commercial insurance only =2; basic medical insurance + commercial insurance =3; no insurance or others = 4
Occupation of the parents	white-collar workers =1; blue-collar workers =2; Mixed white−/blue-collar workers =3; others = 4
Education level of the parents	Junior high school and below =1; Senior high school/ technical secondary school/ junior college = 2; Bachelor’s degree or above =3
Marital status of the parents	Unmarried =1; married = 2; divorced = 3; widowed = 4

For parental occupation, white-collar workers included staff members of the government or other institutions, clerks, and related personnel, whereas blue-collar workers included laborers in the industries of agriculture, forestry, animal husbandry, fishing, and water conservancy, as well as production and transportation equipment operators. Mixed white−/blue-collar workers included professional and technical personnel, commercial workers, and service personnel

ISSN: 1471-2458