2)The poverty and IME rates under different medical insurance schemes

The rate of IME varied among people covered by different types of medical insurance schemes. Compared with people enrolled in other types and with no insurance schemes, those enrolled in the UE-BMI and a mixture of schemes had better capacity to deal with the burden brought by diseases.

3)Single or two‑dimensional household characteristics associated with the incidence of IME

We summarized the top five household characteristics associated with the highest IME incidence and found that households with inpatient members, those with NCD members, and those at a low economic level suffered the highest incidence of IME

4)Top ten diseases for which household hospitalization expenses led to medical impoverishment

A comparison of the IME groups revealed that the top three diseases associated with IME were malignant tumor, congenital heart disease, and mental disease. Te total hospitalization expenses for the above-mentioned diseases all exceeded 7000 Yuan, and the highest payment was up to 11,000 Yuan for malignant tumors. Among the top 10 diseases in terms of total hospitalization expense incurred by IME households, five were chronic diseases(Table 4).