Definitions of the indicators.

†In China, there is a strict household registration system. People who work in the same place where their households are registered are called the resident population, whereas people who work in a different place from where their households are registered are called the nonresident population.
‡According to the Maternal and Infant Health Care Law of China, all newborns should be registered and given the “Child Health Care Handbook” from the medical institution in the community, village or town. The child can then receive certain primary health care services, included free regular physical examinations at set time points (3-, 6-, 9-, and 12 months old, 2 times every year from 1- to 3 years old, and one time every year from 3- to 7 years old), neonatal disease screening, and free regular vaccinations.