I build statistical models to estimate and project human sex ratio at birth on national and sub-national levels.
Fengqing Chao
Research Scientist
My research interests include statistical demography, global health, Bayesian modeling, and time series analysis.
Posts
Calculating Missing Female Births
We explain in greater detail how missing female births has been calculated in our recent study.
Last updated on
Sep 3, 2020
4 min read
Publications
Fengqing Chao, Muhammad Asif Wazir, Hernando Ombao
(2022).
Levels and trends estimate of sex ratio at birth for seven provinces of Pakistan from 1980 to 2020 with scenario-based probabilistic projections of missing female birth to 2050: A Bayesian modeling approach.
International Journal of Population Studies, 8(2) 51-70.
Fengqing Chao
(2022).
Estimating and Projecting Prenatal Sex Discrimination around the World and on Subnational Level in Asia.
In Population Association of Singapore Seminar.
Fengqing Chao, Samir K.C., Hernando Ombao
(2022).
Estimation and probabilistic projection of levels and trends in the sex ratio at birth in seven provinces of Nepal from 1980 to 2050: a Bayesian modeling approach.
BMC Public Health, 22(1) 358.
Fengqing Chao, Samir K.C., Hernando Ombao
(2022).
Technical Appendix for Estimation and probabilistic projection of levels and trends in the sex ratio at birth in seven provinces of Nepal from 1980 to 2050: a Bayesian modeling approach.
figshare.
Fengqing Chao, Muhammad Asif Wazir, Hernando Ombao
(2021).
Web appendix for levels and trends in sex ratio at birth in provinces of Pakistan from 1980 to 2020 with scenario-based missing female birth projections to 2050: a Bayesian modeling approach.
figshare.
Fengqing Chao, Patrick Gerland, Alex R. Cook, Leontine Alkema
(2021).
Global estimation and scenario-based projections of sex ratio at birth and missing female births using a Bayesian hierarchical time series mixture model.
Annals of Applied Statistics, 15(3) 1499-1528.
Fengqing Chao, Patrick Gerland, Alex R. Cook, Christophe Z. Guilmoto, Leontine Alkema
(2021).
Projecting sex imbalances at birth at global, regional and national levels from 2021 to 2100: scenario-based Bayesian probabilistic projections of the sex ratio at birth and missing female births based on 3.26 billion birth records.
BMJ Global Health, 6(8) e005516.
Fengqing Chao, Christophe Z. Guilmoto, Hernando Ombao
(2021).
Sex ratio at birth in Vietnam among six subnational regions during 1980-2050, estimation and probabilistic projection using a Bayesian hierarchical time series model with 2.9 million birth records.
PLoS ONE, 16(7) e0253721.
Fengqing Chao, Christophe Z. Guilmoto, Hernando Ombao
(2021).
S1 Appendix Sex ratio at birth in Vietnam among six subnational regions during 1980–2050, estimation and probabilistic projection using a Bayesian hierarchical time series model with 2.9 million birth records.
figshare.
Fengqing Chao
(2021).
Sex Ratio at Birth by Vietnamese Region Estimation and Projection, a Bayesian modeling approach.
In ENAR Spring Meeting.
Fengqing Chao, Patrick Gerland, Alex R. Cook, Christophe Z. Guilmoto, Leontine Alkema
(2021).
Web Appendix Projecting sex imbalances at birth at global, regional, and national levels from 2018 to 2100: scenario-based Bayesian probabilistic projections of the sex ratio at birth and missing female births.
figshare.
Fengqing Chao
(2020).
Estimating and Projecting Disparities in Pre- and Post-natal Survival using Bayesian Methods.
In Yale-NUS Research Seminar.
Fengqing Chao, Christophe Z. Guilmoto, Samir K.C., Hernando Ombao
(2020).
Probabilistic Projection of the Sex Ratio at Birth and Missing Female Births by State and Union Territory in India.
PLoS ONE, 15(8) e0236673.
Fengqing Chao
(2020).
Scenario-Based Bayesian Probabilistic Projections of the Sex Ratio at Birth and Missing Female Births.
In Joint Statistical Meeting.
Fengqing Chao, Christophe Z. Guilmoto, Samir K.C., Hernando Ombao
(2020).
S1 Appendix Probabilistic projection of the sex ratio at birth and missing female births by State and Union Territory in India.
figshare.
Fengqing Chao, Samir K.C., Hernando Ombao
(2020).
Technical Appendix Levels and trends in the sex ratio at birth in seven provinces of Nepal between 1980 and 2016 with probabilistic projections to 2050: a Bayesian modeling approach.
figshare.
Christophe Z. Guilmoto, Fengqing Chao, Purushottam M. Kulkarni
(2020).
On the estimation of female births missing due to prenatal sex selection.
Population Studies, 74(2) 283–289.
Fengqing Chao, Ajit Kumar Yadav
(2019).
Levels and trends in the sex ratio at birth and missing female births for 29 states and union territories in India 1990-2016: A Bayesian modeling study.
Foundations of Data Science, 1(2) 177–196.
Fengqing Chao, Patrick Gerland, Alex R. Cook, Leontine Alkema
(2019).
Systematic assessment of the sex ratio at birth for all countries and estimation of national imbalances and regional reference levels.
Proceedings of the National Academy of Sciences, 116(19) 9303–9311.
Fengqing Chao, Patrick Gerland, Alex R. Cook, Leontine Alkema
(2019).
Web Appendix Systematic assessment of the sex ratio at birth for all countries and estimation of national imbalances and regional reference levels.