ArticleInquiry : a journal of medical care organization, provision and financing
The Effect of China's Two-Child Policy on the Child Sex Ratio: Evidence From Shanghai, China.
Article in Inquiry : a journal of medical care organization, provision and financing. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Comparison status and factors of pregnancy stress among pregnant women with second child between advanced maternal age and reproductive age: a cross-sectional study.BMC pregnancy and childbirth · 2026Article
- Gender-based discrimination towards cisgender women in low- and middle-income countries: a scoping review of definitions and measures used in the health literature.BMJ public health · 2026Article
- Global, regional, and national burden of neonatal sepsis and other neonatal infections attributable to low birth weight: a systematic analysis of deaths, and DALYs with predictions to 2031.Frontiers in pediatrics · 2025Article
- Research on influencing factors of college teachers' second child fertility intentions--Taking Jinan as an example.PloS one · 2024Article
Corrections and comments
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Authors and funding
4 authors.
Funding
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Abstract
objectiveThe bias towards males at birth has resulted in a major imbalance in the Chinese sex ratio that is often attributed to China's one-child policy. Relaxation of the one-child policy has the potential to reduce the imbalance in the sex ratio away from males. In this study, we assessed whether the bias towards males in the child sex ratio was reduced as a result of the two-child policy in China. Medical records data from one large municipal-level obstetrics hospital in Shanghai, East China.
designMatching and difference-in-differences (MDID) techniques were used to investigate the effect of the two-child policy on the imbalance in the sex ratio at birth after matching for pregnancy status and socioeconomic factors.
resultsAnalyzing 133,358 live births suggest that the relaxation of the one-child policy had a small, but statistically significant effect in reducing the imbalance in the male to female sex ratio at birth.
conclusionThe results demonstrate that relaxation of the one-child policy reduced the imbalance in the male to female sex ratio at birth from 1.10 to 1.05 over the study period at one of the major obstetrics and gynecology hospitals in China.
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