All Staff Chelsea Polis Principal Research Scientist Curriculum Vitae Chelsea Polis no longer works for the Guttmacher Institute. Selected Publications For a full list of publications by Chelsea Polis, download CV. November 2021 Report Access to Contraceptive Services Among Adolescents in Uganda During the COVID-19 Pandemic GlobalContraceptionTeens October 2021 Research Article The infrastructural capacity of Ghanaian health facilities to provide safe abortion and post-abortion care: a cross-sectional study BMC Health Services Research GlobalAbortion July 2021 Research Article Contraceptive and abortion practices of young Ghanaian women aged 15–24: evidence from a nationally representative survey Reproductive Health GlobalAbortionContraceptionPregnancyTeens June 2021 Research Article Use of Fertility Awareness-Based Methods for Pregnancy Prevention Among Ghanaian Women: A Nationally Representative Cross-Sectional Survey Global Health: Science and Practice GlobalContraceptionPregnancy May 2021 Research Article Hormonal contraceptive use in Ghana: the role of method attributes and side effects in method choice and continuation Contraception GlobalContraception September 2020 Research Article Prevalence and Correlates of Perceived Infertility in Ghana Studies in Family Planning Global May 2020 Research Article Perceived Infertility Among Young Adults in Balaka, Malawi International Perspectives on Sexual and Reproductive Health April 2020 Research Article Estimating the incidence of abortion: using the Abortion Incidence Complications Methodology in Ghana, 2017 BMJ Global Health GlobalAbortion April 2020 Research Article Estimating the incidence of abortion: a comparison of five approaches in Ghana BMJ Global Health GlobalAbortion July 2019 Research Article Fertility awareness based methods for pregnancy prevention BMJ GlobalContraception February 2019 Research Article Global Contraceptive Failure Rates: Who Is Most at Risk? Studies in Family Planning December 2018 Research Article Pharmacokinetic, biologic and epidemiologic differences in MPA- and NET-based progestin-only injectable contraceptives relative to the potential impact on HIV acquisition in women Contraception October 2018 Research Article Severity and Management of Postabortion Complications Among Women in Zimbabwe, 2016: A Cross-Sectional Study BMJ Open GlobalAbortion August 2018 Research Article Effectiveness of Fertility Awareness–Based Methods for Pregnancy Prevention: A Systematic Review Obstetrics & Gynecology GlobalContraception July 2018 Research Article There Might Be Blood: A Scoping Review on Women’s Responses to Contraceptive-Induced Menstrual Bleeding Changes Reproductive Health GlobalContraception April 2018 Research Article Multiple contraceptive method use and prevalence of fertility awareness based method use in the United States, 2013–2015 Contraception United StatesContraception June 2017 Research Article Hormonal contraceptive methods and HIV: research gaps and programmatic priorities Contraception GlobalHIV & STIs April 2017 Research Article Incidence of Induced Abortion in Malawi, 2015 PLOS ONE GlobalAbortion October 2016 Blog / Letter / Op-ed Levonorgestrel in contraceptives and multipurpose prevention technologies: does this progestin increase HIV risk or interact with antiretrovirals? AIDS GlobalContraceptionHIV & STIs August 2016 Research Article An updated systematic review of epidemiological evidence on hormonal contraceptive methods and HIV acquisition in women AIDS GlobalContraceptionHIV & STIs March 2016 Report Contraceptive Failure Rates in the Developing World: An Analysis of Demographic and Health Survey Data in 43 Countries GlobalAbortionContraceptionPregnancy March 2016 Research Article Typical use contraceptive failure rates in 43 countries with demographic and health Survey data: summary of a detailed report Contraception GlobalContraception September 2015 Report Sexual and Reproductive Health and Rights Indicators for the SDGs GlobalAbortionContraceptionHIV & STIsPregnancyTeens December 2014 Blog / Letter / Op-ed Can Women Living with HIV and Taking Antiretroviral Therapy Use Hormonal Contraceptive Methods? K4Health GlobalContraceptionHIV & STIs December 2014 Research Article Contraceptive Methods and Risk of HIV Acquisition or Female-to-Male Transmission Current HIV/AIDS Reports October 2014 Research Article Hormonal contraceptive methods and risk of HIV acquisition in women: a systematic review of epidemiological evidence Contraception August 2014 Research Article Progestin-only contraception: Injectables and implants Best Practice & Research Clinical Obstetrics & Gynaecology June 2014 Research Article Using Measurements of Unmet Need to Inform Program Investments for Health Service Integration Studies in Family Planning May 2014 Research Article Preference for Sayana® Press versus intramuscular Depo-Provera among HIV-positive women in Rakai, Uganda: a randomized crossover trial Contraception February 2013 Research Article Hormonal contraceptive use and female-to-male HIV transmission: a systematic review of the epidemiologic evidence. AIDS January 2013 Research Article Modelling the global competing risks of a potential interaction between injectable hormonal contraception and HIV risk. AIDS December 2012 Research Article Effect of injectable contraceptive use on response to antiretroviral therapy among women in Rakai, Uganda Contraception February 2012 Research Article Missed Conceptions or Misconceptions: Perceived Infertility Among Unmarried Young Adults In the United States Perspectives on Sexual and Reproductive Health July 2011 Research Article Trends and correlates of hormonal contraceptive use among HIV-infected women in Rakai, Uganda, 1994-2006 Contraception February 2011 Research Article Effect of Hormonal Contraceptive Use Before HIV Seroconversion on Viral Load Setpoint Among Women in Rakai, Uganda JAIDS Journal of Acquired Immune Deficiency Syndromes
November 2021 Report Access to Contraceptive Services Among Adolescents in Uganda During the COVID-19 Pandemic GlobalContraceptionTeens
October 2021 Research Article The infrastructural capacity of Ghanaian health facilities to provide safe abortion and post-abortion care: a cross-sectional study BMC Health Services Research GlobalAbortion
July 2021 Research Article Contraceptive and abortion practices of young Ghanaian women aged 15–24: evidence from a nationally representative survey Reproductive Health GlobalAbortionContraceptionPregnancyTeens
June 2021 Research Article Use of Fertility Awareness-Based Methods for Pregnancy Prevention Among Ghanaian Women: A Nationally Representative Cross-Sectional Survey Global Health: Science and Practice GlobalContraceptionPregnancy
May 2021 Research Article Hormonal contraceptive use in Ghana: the role of method attributes and side effects in method choice and continuation Contraception GlobalContraception
September 2020 Research Article Prevalence and Correlates of Perceived Infertility in Ghana Studies in Family Planning Global
May 2020 Research Article Perceived Infertility Among Young Adults in Balaka, Malawi International Perspectives on Sexual and Reproductive Health
April 2020 Research Article Estimating the incidence of abortion: using the Abortion Incidence Complications Methodology in Ghana, 2017 BMJ Global Health GlobalAbortion
April 2020 Research Article Estimating the incidence of abortion: a comparison of five approaches in Ghana BMJ Global Health GlobalAbortion
July 2019 Research Article Fertility awareness based methods for pregnancy prevention BMJ GlobalContraception
February 2019 Research Article Global Contraceptive Failure Rates: Who Is Most at Risk? Studies in Family Planning
December 2018 Research Article Pharmacokinetic, biologic and epidemiologic differences in MPA- and NET-based progestin-only injectable contraceptives relative to the potential impact on HIV acquisition in women Contraception
October 2018 Research Article Severity and Management of Postabortion Complications Among Women in Zimbabwe, 2016: A Cross-Sectional Study BMJ Open GlobalAbortion
August 2018 Research Article Effectiveness of Fertility Awareness–Based Methods for Pregnancy Prevention: A Systematic Review Obstetrics & Gynecology GlobalContraception
July 2018 Research Article There Might Be Blood: A Scoping Review on Women’s Responses to Contraceptive-Induced Menstrual Bleeding Changes Reproductive Health GlobalContraception
April 2018 Research Article Multiple contraceptive method use and prevalence of fertility awareness based method use in the United States, 2013–2015 Contraception United StatesContraception
June 2017 Research Article Hormonal contraceptive methods and HIV: research gaps and programmatic priorities Contraception GlobalHIV & STIs
October 2016 Blog / Letter / Op-ed Levonorgestrel in contraceptives and multipurpose prevention technologies: does this progestin increase HIV risk or interact with antiretrovirals? AIDS GlobalContraceptionHIV & STIs
August 2016 Research Article An updated systematic review of epidemiological evidence on hormonal contraceptive methods and HIV acquisition in women AIDS GlobalContraceptionHIV & STIs
March 2016 Report Contraceptive Failure Rates in the Developing World: An Analysis of Demographic and Health Survey Data in 43 Countries GlobalAbortionContraceptionPregnancy
March 2016 Research Article Typical use contraceptive failure rates in 43 countries with demographic and health Survey data: summary of a detailed report Contraception GlobalContraception
September 2015 Report Sexual and Reproductive Health and Rights Indicators for the SDGs GlobalAbortionContraceptionHIV & STIsPregnancyTeens
December 2014 Blog / Letter / Op-ed Can Women Living with HIV and Taking Antiretroviral Therapy Use Hormonal Contraceptive Methods? K4Health GlobalContraceptionHIV & STIs
December 2014 Research Article Contraceptive Methods and Risk of HIV Acquisition or Female-to-Male Transmission Current HIV/AIDS Reports
October 2014 Research Article Hormonal contraceptive methods and risk of HIV acquisition in women: a systematic review of epidemiological evidence Contraception
August 2014 Research Article Progestin-only contraception: Injectables and implants Best Practice & Research Clinical Obstetrics & Gynaecology
June 2014 Research Article Using Measurements of Unmet Need to Inform Program Investments for Health Service Integration Studies in Family Planning
May 2014 Research Article Preference for Sayana® Press versus intramuscular Depo-Provera among HIV-positive women in Rakai, Uganda: a randomized crossover trial Contraception
February 2013 Research Article Hormonal contraceptive use and female-to-male HIV transmission: a systematic review of the epidemiologic evidence. AIDS
January 2013 Research Article Modelling the global competing risks of a potential interaction between injectable hormonal contraception and HIV risk. AIDS
December 2012 Research Article Effect of injectable contraceptive use on response to antiretroviral therapy among women in Rakai, Uganda Contraception
February 2012 Research Article Missed Conceptions or Misconceptions: Perceived Infertility Among Unmarried Young Adults In the United States Perspectives on Sexual and Reproductive Health
July 2011 Research Article Trends and correlates of hormonal contraceptive use among HIV-infected women in Rakai, Uganda, 1994-2006 Contraception
February 2011 Research Article Effect of Hormonal Contraceptive Use Before HIV Seroconversion on Viral Load Setpoint Among Women in Rakai, Uganda JAIDS Journal of Acquired Immune Deficiency Syndromes