Publications by authors named "Chelsea B Polis"

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Contraceptive effectiveness: A synthesis of the literature.
Chelsea B Polis, Sarah E K Bradley, Elizabeth A Micks, Markus J Steiner

Contraception· February 2026

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Consensus recommendations for measuring the impact of contraception on the menstrual cycle in contraceptive clinical trials.
Amelia C L Mackenzie, Stephanie Chung, Emily Hoppes, Nora Miller, Anne E Burke, Chelsea B Polis

Contraception· June 2025

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A comparison of acceptability of contraceptive vaginal rings, pills, and injectables among cisgender women in Kenya and Zimbabwe: protocol for a mixed-methods study.
Chelsea B Polis, Francis O Obare, Irene V Bruce, Cynthia Banda, Lisa B Haddad

Gates Open Res· March 2025

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Correcting the scientific record on abortion and mental health outcomes.
Julia H Littell, Kathryn M Abel, M Antonia Biggs, Robert W Blum, Diana Greene Foster, Chelsea B Polis

BMJ· February 2024

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Impacts of COVID-19 on contraceptive and abortion services in low- and middle-income countries: a scoping review.
Chelsea B Polis, Ann Biddlecom, Susheela Singh, Boniface Ayanbekongshie Ushie, Lori Rosman

Sex Reprod Health Matters· December 2022

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A Content Analysis of Reddit Users' Posts about Challenges to Contraceptive care-seeking during COVID-19-related Restrictions in the United States.
Zoe H Pleasure, Lori F Frohwirth, Naomi Li, Chelsea B Polis

J Health Commun· October 2022

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Global research and learning agenda for building evidence on contraceptive-induced menstrual changes for research, product development, policies, and programs.
Emily Hoppes, Chukwuemeka Nwachukwu, Julie Hennegan, Diana L Blithe, Amanda Cordova-Gomez, Chelsea B Polis

Gates Open Res· April 2022

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The infrastructural capacity of Ghanaian health facilities to provide safe abortion and post-abortion care: a cross-sectional study.
Onikepe Owolabi, Taylor Riley, Easmon Otupiri, Chelsea B Polis, Roderick Larsen-Reindorf

BMC Health Serv Res· October 2021

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Hormonal contraceptive use in Ghana: The role of method attributes and side effects in method choice and continuation.
Sarah C Keogh, Easmon Otupiri, Philicia W Castillo, Doris W Chiu, Chelsea B Polis

Contraception· September 2021

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Re: The Use of Time to Pregnancy for Estimating and Monitoring Human Fecundity From Demographic and Health Surveys.
Chelsea B Polis, Carie M Cox, Özge Tunçalp, Alexander C McLain, Marie E Thoma

Epidemiology· September 2021

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Contraceptive and abortion practices of young Ghanaian women aged 15-24: evidence from a nationally representative survey.
Sarah C Keogh, Easmon Otupiri, Philicia W Castillo, Naomi W Li, Joana Apenkwa, Chelsea B Polis

Reprod Health· July 2021

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Estimating the incidence of abortion: using the Abortion Incidence Complications Methodology in Ghana, 2017.
Chelsea B Polis, Philicia W Castillo, Easmon Otupiri, Sarah C Keogh, Rubina Hussain

BMJ Glob Health· June 2021

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Use of Fertility Awareness-Based Methods for Pregnancy Prevention Among Ghanaian Women: A Nationally Representative Cross-Sectional Survey.
Chelsea B Polis, Easmon Otupiri, Suzanne O Bell, Roderick Larsen-Reindorf

Glob Health Sci Pract· June 2021

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Prevalence and Correlates of Perceived Infertility in Ghana.
Chelsea B Polis, Easmon Otupiri, Michelle Hindin, Doris W Chiu, Sarah C Keogh

Stud Fam Plann· September 2020

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Perceived Infertility Among Young Adults in Balaka, Malawi.
Chelsea B Polis, Ann M Moore, Abdallah Chilungo, Sara Yeatman

Int Perspect Sex Reprod Health· May 2020

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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].
Renee Heffron, Sharon L Achilles, Laneta J Dorflinger, Janet P Hapgood, James Kiarie, Chelsea B Polis

Contraception· July 2019

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Fertility awareness based methods for pregnancy prevention.
Rachel Peragallo Urrutia, Chelsea B Polis

BMJ· July 2019

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Pharmacokinetic, biologic and epidemiologic differences in MPA- and NET-based progestin-only injectable contraceptives relative to the potential impact on HIV acquisition in women.
Renee Heffron, Sharon L Achilles, Laneta J Dorflinger, Janet P Hapgood, James Kiarie, Chelsea B Polis

Contraception· April 2019

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Global Contraceptive Failure Rates: Who Is Most at Risk?
Sarah E K Bradley, Chelsea B Polis, Akinrinola Bankole, Trevor Croft

Stud Fam Plann· March 2019

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Multiple contraceptive method use and prevalence of fertility awareness based method use in the United States, 2013-2015.
Chelsea B Polis, Rachel K Jones

Contraception· September 2018

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Effectiveness of Fertility Awareness-Based Methods for Pregnancy Prevention: A Systematic Review.
Rachel Peragallo Urrutia, Chelsea B Polis, Elizabeth T Jensen, Margaret E Greene, Emily Kennedy

Obstet Gynecol· September 2018

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Published analysis of contraceptive effectiveness of Daysy and DaysyView app is fatally flawed.
Chelsea B Polis

Reprod Health· June 2018

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There might be blood: a scoping review on women's responses to contraceptive-induced menstrual bleeding changes.
Chelsea B Polis, Rubina Hussain, Amanda Berry

Reprod Health· June 2018

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Is a lower-dose, subcutaneous contraceptive injectable containing depot medroxyprogesterone acetate likely to impact women's risk of HIV?
Chelsea B Polis, Sharon L Achilles, Zdenek Hel, Janet P Hapgood

Contraception· March 2018

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Severity and management of postabortion complications among women in Zimbabwe, 2016: a cross-sectional study.
Mugove Gerald Madziyire, Chelsea B Polis, Taylor Riley, Elizabeth A Sully, Onikepe Owolabi

BMJ Open· February 2018

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