Reproductive Characteristics and Trends of Major Pregnancy Outcomes of Women at Different Parities - Beijing Municipality, China, 2013-2022.

What is already known about this topic?:With socioeconomic development, the increase of older pregnancies and multiparas has brought risks to mothers and infants. What is added by this report?:As parities increased, the proportion of women of advanced maternal age (AMA) and non-local domicile increased, while the proportion of women with higher education levels decreased. Women with ≥3 parities are more likely to have preterm birth (PTB) and macrosomia. What are the implications for public health practice?:A comprehensive analysis of pregnancy traits among women at different parities offers a robust foundation for tailored strategies against adverse pregnancy outcomes.