Figure 2.

Proportion of high-risk pregnant women by province in 2008, 2013 and 2016. Notes: data were extracted from the National Health Statistics Yearbooks in China. The proportion of high-risk pregnant women is defined as the ratio of the number of high-risk pregnant women (any condition that could increase the likelihood of an adverse outcome for mother, fetus or both) to the number of live births.⁴ High-risk pregnant women have been further labelled with yellow (moderate risk), orange (high risk), red (highest risk) or purple (infectious disease) after the implementation of Five Strategies for Maternal and Newborn Safety since 2016.