Books and Monographs

1.       Bellows B, Behl R, Abuya T, Muriuki A, Bajracharya A, Choi Y. Chapter 12: Benchmarking to assess quality of family planning services: Construction and use of indices for family planning readiness in Kenya with data from 2010 and 2014. In: Leisher SH, Sprockett A, Longfield K, and Montagu D. Quality Measurement in Family Planning: Past, Present, Future: Papers from the Bellagio Meeting on Family Planning Quality in October 2015. Oakland, CA: Metrics for Management. 2016 Oct 

2.       Choi Y. Chapter 4: Demographic transition in sub-Saharan Africa: Implications for demographic dividend. In: Chande RH, Pace R. Demographic Dividend: Emerging challenges and policy implications. Springer. 2016 Aug 

Working Papers and Pre Prints

1.       Riese S, Dunia G, Leazer S, Marchena C, Mourssa H, Semenow G, Choi Y, Malick L. Improved family planning service quality of care data for low- and middle-income countries. Working Paper. 2023 Apr

2.       Choi Y, Karp C, Gummerson E, Anglewicz P. Women’s reported satisfaction and quality of care at family planning visits: Levels, patterns, and correlates from client exit interview data in five countries. 2021 Nov

3.       Pathak I, Choi Y, Jiao D, Yeung D, Liu L. Racial-ethnic disparities in case fatality ratio narrowed after age standardization: A call for race-ethnicity-specific age distributions in State COVID-19 data. medRxiv 2020.10.01.20205377

Working Papers and Pre Prints

4.       Fabic MS, Choi Y. Trends in Age Distribution of COVID-19 Cases, Hospitalizations, and Deaths by Race in the United States. SocArXiv, 13 Aug. 2020.

5.       Choi Y, OlaOlorun E, Huq M.  Is receipt of contraceptive method information associated with women’s perspectives on providers? Evidence from PMA2020 surveys in eight sub-Saharan Africa. Nov  2018

6.       Choi Y. Disparity in fertility transition and education, and implications for demographic dividend: analysis of Demographic and Health Surveys from 31 sub-Saharan Africa countries. Nov  2015

Technical Reports

1.       Choi Y, Safi S, Nobili J, PMA2020 Principal Investigators Group, Radloff S.  Levels, trends, and patterns of contraceptive method availability: Comparative analyses in eight sub-Saharan African countries.  Mar 2019. Performance Monitoring and Accountability 2020 Methodological Report No. 5. Baltimore, Maryland, USA: Bill & Melinda Gates Institute for Population and Reproductive Health, Johns Hopkins University Bloomberg School of Public Health. 

2.       Greenleaf A, Aliou G, Turke S, Battle N, Ahmed S, Moreau C, Guiella G, Choi Y.  Comparison of remote data collection modes to monitor family planning progress in Burkina Faso: Representativeness, data quality, and cost.  Feb 2019. Performance Monitoring and Accountability 2020 Technical Report. Baltimore, Maryland, USA: Bill & Melinda Gates Institute for Population and Reproductive Health, Johns Hopkins Bloomberg School of Public Health. 

3.       Roemer M, Voegtline K, Strobino D, Choi Y. Method awareness questions and women’s report for modern method use in surveys.  Performance Monitoring and Accountability 2020 Methodological Report No. 4. Baltimore, Maryland, USA: Bill & Melinda Gates Institute for Population and Reproductive Health, Johns Hopkins University Bloomberg School of Public Health.  

4.       Khanna A, Choi Y, Zimmerman L, Radloff S, Zachary B, Ahmad D. Women’s reporting of current use of contraceptive methods in a population with high sterilization rates: Lessons learned from PMA2020 Rajasthan 2016. Aug 2017. Performance Monitoring and Accountability 2020 Methodological Report No. 3. Baltimore, Maryland, USA: Bill & Melinda Gates Institute for Population and Reproductive Health, Johns Hopkins University Bloomberg School of Public Health, and Indian Institute of Health Management Research (IIHMR University). 

5.       Choi Y, Li Q, Zachary B. Fertility data in Performance Monitoring and Accountability 2020 surveys. Aug 2017. Performance Monitoring and Accountability 2020 Methodological Report No. 2. Baltimore, Maryland, USA: Bill & Melinda Gates Institute for Population and Reproductive Health, Johns Hopkins University Bloomberg School of Public Health.  

6.       Hill K, Stanton C, Levin M, Queiroz B, Choi Y, Mahani W, AbouZahr C. Measuring Maternal Mortality from a Census: Guidelines for Potential Users, 2nd Revision 2009. Dec 2009. (Technical report for the Health Metrics Network, WHO for “WHO guidance for measuring maternal mortality from a census” 2013 World Health Organization, Geneva) 

7.       Choi Y, Friedman J, Heywood P, Kosen S. Forecasting health care demand in a middle income country: disease transitions in East and Central Java, Indonesia. 2007. World Bank Research Working Paper. The International Bank for Reconstruction and Development, World Bank. Washington, DC 

8.       Friedman J, Heywood P, Marks G, Saadah F, Choi Y. Health sector decentralization and Indonesia's nutrition programs : opportunities and challenges. January 20, 2006. World Bank Policy Research Working Paper No. 39690. The International Bank for Reconstruction and Development, World Bank. Washington, DC 

9.       Stanton C, Hill K, Choi Y, AbouZahr C, Wardlaw T.  Trends in process and outcome measures of maternal health in developing countries.  Johns Hopkins University, Aug 2003 (Technical report for WHO and UNICEF)

10.   Hill K, Choi Y. Neonatal Mortality in the Developing World.  Johns Hopkins University, May 2003 (Technical report for the Child Health Epidemiology Reference Group, WHO)

11.   Hill K, Choi Y, AbouZahr C, Wardlaw T. Estimates of Maternal Mortality for 2000.  Johns Hopkins University, Jul 2002.  (Technical report for WHO and UNICEF for “Maternal Mortality in 2000: Estimates Developed by WHO, UNICEF, and UNFPA” 2004 World Health Organization, Geneva)