Fig 1.
Trend of the Chinese low birthweight rate from 1991 to 2020 by area.
Table 1.
Joinpoint regression of low birthweight rates in the nation, eastern, central and western regions.
Fig 2.
Low birth weight rates and ranks in 30 provincial-level administrative districts in China, 2002 and 2021.
Fig 3.
Geographic distribution of the low birth weight rate and its change in China from 2002 to 2021.
(A) 1992; (B) 2021; (C) changes from 1992 to 2021. The vector maps was derived from publicly available data from the National Catalogue Service of Geographic Information in China (https://www.webmap.cn/main.do?method=index).
Fig 4.
Slope index of inequality and relative index of inequality of low birth weight rates in China from 2002 to 2021.
(A): slope index of inequality; (B): relative index of inequality.
Fig 5.
The prediction of low birthweight rates from 2022 to 2030.
(A): Nation; (B): Eastern regions; (C): Central regions; (D): Western regions. The solid line represents the predictions and the gray area represents the 95% confidence intervals (CIs).