2013
Contraceptive Failures in Overweight and Obese Combined Hormonal Contraceptive Users
McNicholas C, Zhao Q, Secura G, Allsworth J, Madden T, Peipert J. Contraceptive Failures in Overweight and Obese Combined Hormonal Contraceptive Users. Obstetrics And Gynecology 2013, 121: 585-592. PMID: 23635622, PMCID: PMC4009704, DOI: 10.1097/aog.0b013e31828317cc.Peer-Reviewed Original ResearchConceptsOral contraceptive pillsBody mass indexUnintended pregnancyContraceptive failureVaginal ringPrevious unintended pregnancyHormonal contraceptive usersSignificant risk factorsVaginal ring usersContraceptive vaginal ringContraceptive failure ratesFailure rateContraceptive studyBMI categoriesMass indexContraceptive pillsObese femalesContraceptive usersRisk factorsRing usersTransdermal patchPregnancyReversible methodFailureFemales
2012
Contraceptive Failure Rates of Etonogestrel Subdermal Implants in Overweight and Obese Women
Xu H, Wade J, Peipert J, Zhao Q, Madden T, Secura G. Contraceptive Failure Rates of Etonogestrel Subdermal Implants in Overweight and Obese Women. Obstetrics And Gynecology 2012, 120: 21-26. PMID: 22678035, PMCID: PMC4043143, DOI: 10.1097/aog.0b013e318259565a.Peer-Reviewed Original ResearchConceptsObese womenContraceptive failure ratesIntrauterine deviceContraceptive methodsFirst-line contraceptive methodLarge prospective cohort studyKaplan-Meier survival curvesActing reversible contraceptive (LARC) methodsUrine pregnancy testingProspective cohort studyBody mass indexEtonogestrel subdermal contraceptive implantEtonogestrel subdermal implantSubdermal contraceptive implantFailure rateReversible contraceptive methodsT-testContraceptive CHOICE ProjectStudent's t-testReliable birth control methodsBirth control methodsCohort studyCumulative failure rateNormal weightMass index