Income-related health inequality of migrant workers in China and its decomposition: An analysis based on the 2012 China Labor-force Dynamics Survey data.
BACKGROUND
Although migrant workers are a vulnerable group in China, they demonstrably contribute to the country's economic growth and prosperity. This study aimed to describe and assess the inequality of migrant worker health in China and its association with socioeconomic determinants.


METHODS
The data utilized in this study were obtained from the 2012 China Labor-force Dynamics Survey conducted in 29 Chinese provinces. This study converted the self-rated health of these migrant workers into a general cardinal ill-health score. Determinants associated with migrant worker health included but were not limited to age, marital status, income, and education, among other factors. Concentration index, concentration curve, and decomposition of the concentration index were employed to measure socioeconomic inequality in migrant workers' health.


RESULTS
Prorich inequality was found in the health of migrant workers. The concentration index was -0.0866, as a score indicator of ill health. Decomposition of the concentration index revealed that the factors most contributing to the observed inequality were income, followed by gender, age, marital status, and smoking history.


CONCLUSIONS
It is generally known that there is an unequal socioeconomic distribution of migrant worker health in China. In order to reduce the health inequality, the government should make a substantial effort to strengthen policy implementation in improving the income distribution for vulnerable groups. After this investigation, it is apparent that the findings we have made warrant further investigation.
Department of Health Service Management, Humanities and Management School, Wenzhou Medical University, Wenzhou, China.
Cenyi
C
Shao
Department of Health Service Management, Humanities and Management School, Wenzhou Medical University, Wenzhou, China. Electronic address: mengxuehui@aliyun.com.
Xuehui
X
Meng
Department of Health Service Management, Humanities and Management School, Wenzhou Medical University, Wenzhou, China.
Shichen
S
Cui
Department of Health Service Management, Humanities and Management School, Wenzhou Medical University, Wenzhou, China.
Jingru
J
Wang
Department of Health Service Management, Humanities and Management School, Wenzhou Medical University, Wenzhou, China.
Chengcheng
C
Li
D000328:Adult; D000368:Aged; D002681:China; D004651:Employment; D054624:Health Status Disparities; D006801:Humans; D007182:Income; D008875:Middle Aged; D011795:Surveys and Questionnaires; D014171:Transients and Migrants
concentration index; income-related health inequality; inequality decomposition; migrant workers