Chelsea B. Polis
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View article: A comparison of acceptability of contraceptive vaginal rings, pills, and injectables among cisgender women in Kenya and Zimbabwe: protocol for a mixed-methods study
A comparison of acceptability of contraceptive vaginal rings, pills, and injectables among cisgender women in Kenya and Zimbabwe: protocol for a mixed-methods study Open
BackgroundExpanding contraceptive options could better meet users’ diverse needs and preferences. Annovera ® is a contraceptive vaginal ring that provides a year of pregnancy prevention while remaining under user control and allowing for r…
View article: Consensus recommendations for measuring the impact of contraception on the menstrual cycle in contraceptive clinical trials
Consensus recommendations for measuring the impact of contraception on the menstrual cycle in contraceptive clinical trials Open
Consensus recommendations on measuring bleeding changes and related outcomes in contraceptive clinical trials can improve reporting of standardized, patient-centered outcomes in future product labeling. These improvements can enable health…
View article: Mifepristone as a non-emergency contraceptive among women of reproductive age: a protocol for systematic review and meta-analysis
Mifepristone as a non-emergency contraceptive among women of reproductive age: a protocol for systematic review and meta-analysis Open
Background Mifepristone is a selective progesterone receptor modulator with decades of data demonstrating its potential as a highly effective emergency as well as non-emergency contraceptive. Despite considerable evidence pointing to the p…
View article: Knowledge of abortion legality among health facility staff in Ghana
Knowledge of abortion legality among health facility staff in Ghana Open
Background Abortion has been legal for multiple indications in Ghana since 1985, and efforts have been made to expand the availability of safe abortion care in the years since. However clandestine, and potentially unsafe, abortions remain …
View article: Editorial Board
Editorial Board Open
View article: Editorial Board
Editorial Board Open
View article: Consensus recommendations for measuring the impact of contraception on the menstrual cycle in contraceptive clinical trials
Consensus recommendations for measuring the impact of contraception on the menstrual cycle in contraceptive clinical trials Open
Objective We sought to develop consensus recommendations for improved measurement of contraceptive-induced menstrual changes (CIMCs) in contraceptive clinical trials to build upon previous standardization efforts. Study Design We undertook…
View article: Correcting the scientific record on abortion and mental health outcomes
Correcting the scientific record on abortion and mental health outcomes Open
Using the example of unreliable studies on mental health sequelae of induced abortion, Julia H. Littell and colleagues call for better adherence to ethical standards for correction or retraction of unreliable publications in order to maint…
View article: The Global Interdisciplinary Group Technique: A Virtual Consensus-Building Methodology for Developing Recommendations among International Interdisciplinary Expert Groups
The Global Interdisciplinary Group Technique: A Virtual Consensus-Building Methodology for Developing Recommendations among International Interdisciplinary Expert Groups Open
View article: Impacts of COVID-19 on contraceptive and abortion services in low- and middle-income countries: a scoping review
Impacts of COVID-19 on contraceptive and abortion services in low- and middle-income countries: a scoping review Open
The COVID-19 pandemic has disproportionate effects on people living in low- and middle-income countries (LMICs), exacerbating weak health systems. We conducted a scoping review to identify, map, and synthesise studies in LMICs that measure…
View article: Global research and learning agenda for building evidence on contraceptive-induced menstrual changes for research, product development, policies, and programs
Global research and learning agenda for building evidence on contraceptive-induced menstrual changes for research, product development, policies, and programs Open
Background: Contraceptive-induced menstrual changes (CIMCs) can affect family planning (FP) users’ lives in both positive and negative ways, resulting in both opportunities and consequences. Despite this, and despite the important links be…
View article: The infrastructural capacity of Ghanaian health facilities to provide safe abortion and post-abortion care: a cross-sectional study
The infrastructural capacity of Ghanaian health facilities to provide safe abortion and post-abortion care: a cross-sectional study Open
View article: Contraceptive and abortion practices of young Ghanaian women aged 15–24: evidence from a nationally representative survey
Contraceptive and abortion practices of young Ghanaian women aged 15–24: evidence from a nationally representative survey Open
View article: Hormonal contraceptive methods and risk of HIV acquisition in women: a systematic review of epidemiological evidence
Hormonal contraceptive methods and risk of HIV acquisition in women: a systematic review of epidemiological evidence Open
Whether use of various types of hormonal contraception (HC) affect risk of HIV acquisition is a critical question for women's health. For this systematic review, we identified 22 studies published by January 15, 2014 which met inclusion cr…
View article: Use of Fertility Awareness-Based Methods for Pregnancy Prevention Among Ghanaian Women: A Nationally Representative Cross-Sectional Survey
Use of Fertility Awareness-Based Methods for Pregnancy Prevention Among Ghanaian Women: A Nationally Representative Cross-Sectional Survey Open
Few studies in low- and middle-income countries have examined the use of fertility awareness-based methods (FABMs) for pregnancy prevention. Understanding the prevalence of FABM use among Ghanaian contraceptors and the characteristics and …
View article: Hormonal contraceptive use in Ghana: The role of method attributes and side effects in method choice and continuation
Hormonal contraceptive use in Ghana: The role of method attributes and side effects in method choice and continuation Open
View article: Assessing the effect of hormonal contraception on HIV acquisition in observational data: challenges and recommended analytic approaches
Assessing the effect of hormonal contraception on HIV acquisition in observational data: challenges and recommended analytic approaches Open
Determining whether hormonal contraception (HC), particularly the injectable contraceptive depot-medroxyprogesterone acetate (DMPA), increases a woman's risk of HIV acquisition is a priority question for public health. However, assessing t…
View article: Prevalence and Correlates of Perceived Infertility in Ghana
Prevalence and Correlates of Perceived Infertility in Ghana Open
Perceived infertility is an understudied phenomenon in low‐ and middle‐income countries, where biomedical infertility can have severe consequences, particularly for women. We conducted a nationally representative survey of Ghanaian women, …
View article: Issue Information
Issue Information Open
View article: Estimating the incidence of abortion: a comparison of five approaches in Ghana
Estimating the incidence of abortion: a comparison of five approaches in Ghana Open
Introduction Induced abortion estimates are critical for reproductive health programming. In countries like Ghana where abortion is somewhat legally restricted and highly stigmatised, official records are incomplete and different approache…
View article: Estimating the incidence of abortion: using the Abortion Incidence Complications Methodology in Ghana, 2017
Estimating the incidence of abortion: using the Abortion Incidence Complications Methodology in Ghana, 2017 Open
Introduction Induced abortion is legally permitted in Ghana under specific conditions, but access to services that meet guidelines approved by government is limited. As part of a larger project comparing five methodologies to estimate abor…
View article: An updated systematic review of epidemiological evidence on hormonal contraceptive methods and HIV acquisition in women
An updated systematic review of epidemiological evidence on hormonal contraceptive methods and HIV acquisition in women Open
Some studies suggest that specific hormonal contraceptive methods [particularly depot medroxyprogesterone acetate (DMPA)] may increase women's HIV acquisition risk. We updated a systematic review to incorporate recent epidemiological data.
View article: Perceived Infertility Among Young Adults in Balaka, Malawi
Perceived Infertility Among Young Adults in Balaka, Malawi Open
Perceived infertility was lower in Malawi than in the United States, although substantial among certain subgroups. Educational interventions aimed at increasing knowledge about pregnancy probabilities and the return of fertility after cont…
View article: Corrigendum to “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 99 (2019) 199–204]
Corrigendum to “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 99 (2019) 199–204] Open
View article: Global Contraceptive Failure Rates: Who Is Most at Risk?
Global Contraceptive Failure Rates: Who Is Most at Risk? Open
Contraceptive failure is a major contributor to unintended pregnancy worldwide. DHS retrospective calendars, which are the most widely used data source for estimating contraceptive failure in low‐income countries, vary in quality across co…
View 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
Pharmacokinetic, biologic and epidemiologic differences in MPA- and NET-based progestin-only injectable contraceptives relative to the potential impact on HIV acquisition in women Open
View article: There might be blood: a scoping review on women’s responses to contraceptive-induced menstrual bleeding changes
There might be blood: a scoping review on women’s responses to contraceptive-induced menstrual bleeding changes Open
Substantial variability exists around how women respond to CIMBCs; these responses are shaped by individual and social influences. Despite variation in responses across contexts and sub-populations, CIMBCs can impact multiple aspects of wo…
View article: Published analysis of contraceptive effectiveness of Daysy and DaysyView app is fatally flawed
Published analysis of contraceptive effectiveness of Daysy and DaysyView app is fatally flawed Open
View article: Severity and management of postabortion complications among women in Zimbabwe, 2016: a cross-sectional study
Severity and management of postabortion complications among women in Zimbabwe, 2016: a cross-sectional study Open
Objectives Abortion complications cause significant morbidity and mortality. We aimed to assess the severity and factors associated with abortion complications (induced or spontaneous), and the management of postabortion care (PAC) in Zimb…
View article: Is a lower-dose, subcutaneous contraceptive injectable containing depot medroxyprogesterone acetate likely to impact women's risk of HIV?
Is a lower-dose, subcutaneous contraceptive injectable containing depot medroxyprogesterone acetate likely to impact women's risk of HIV? Open