Contraceptive efficacy

Trussell, J.

doi:10.1001/archderm.131.9.1064

Cited by 37 publications

(64 citation statements)

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“…In contrast to "perfect use" failure rates, typical use CFRs are estimated based on the percentage of average couples who experience an accidental pregnancy during the first year of initiating a method (not necessarily for the first time) if they do not stop using that method for any other reason: no method (85.0%), not sure (85.0%), withdrawal only (18.4%), condom only (17.4%), birth control pill only (8.7%), Depo-Provera/shot only (6.7%), all methods including other methods (12.4%), condom with other method (2.2%), birth control pill and condom (1.5%), condom and Depo-Provera/shot only (1.2%), and condom and withdrawal (3.2%). [12][13][14] Failure rates for dual method use at last intercourse (pill and condom or injection and condom) were estimated by multiplying the methodspecific failure rates for the two methods used.…”

Section: Methodsmentioning

confidence: 99%

Pregnancy Risk among Black, White, and Hispanic Teen Girls in New York City Public Schools

et al. 2010

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Disparities in teen pregnancy rates are explained by different rates of sexual activity and contraceptive use. Identifying other components of risk such as race/ ethnicity and neighborhood can inform strategies for teen pregnancy prevention. Data from the 2005 and 2007 New York City Youth Risk Behavior Surveys were used to model demographic differences in odds of recent sexual activity and birth control use among black, white, and Hispanic public high school girls. Overall pregnancy risk was calculated using pregnancy risk index (PRI) methodology, which estimates probability of pregnancy based on current sexual activity and birth control method at last intercourse. Factors of race/ethnicity, grade level, age, borough, and school neighborhood were assessed. Whites reported lower rates of current sexual activity (23.4%) than blacks (35.4%) or Hispanics (32.7%), and had lower predicted pregnancy risk (PRI= 5.4% vs. 9.0% and 10.5%, respectively). Among sexually active females, hormonal contraception use rates were low in all groups (11.6% among whites, 7.8% among blacks, and 7.5% among Hispanics). Compared to white teens, much of the difference in PRI was attributable to poorer contraceptive use (19% among blacks and 50% among Hispanics). Significant differences in contraceptive use were also observed by school neighborhood after adjusting for age group and race/ethnicity. Interventions to reduce teen pregnancy among diverse populations should include messages promoting delayed sexual activity, condom use and use of highly effective birth control methods. Access to long-acting contraceptive methods must be expanded for all sexually active high school students.

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Section: Methodsmentioning

confidence: 99%

Pregnancy Risk among Black, White, and Hispanic Teen Girls in New York City Public Schools

et al. 2010

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“…Yet, to the disappointment of many women seeking alternatives to pills and devices, there is no mention of such methods as Symptothermal, Ovulation, Two day, and Standard days, i.e., methods that have been included in international research and in research on contraceptive technology for several years. Their estimates for perfect use of 0.4 (symptothermal), 3 (ovulation), 4 (Two day), and 5 (Standard days) respectively [8] indicate that they can compete with some of the methods included in the FDA survey. Disregard for such methods is not reconcilable with the bioethical principle of "informed consent'' , which requires complete and accurate information for the patient on all aspects of a medical issue, in this case availability of contraceptive methods.…”

Section: Discussionmentioning

confidence: 99%

Are Women Adequately Informed by Publications on Contraception? An International Perspective

Kraetschmer¹

2017

J Women's Health Care

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The paper argues by way of an international comparison that U.S. research publications as well as public health media provide inadequate information on contraceptive methods. To support this argument, the paper analyses the most salient publications as well as websites of public health agencies and compares them to European publications. It concludes that U.S. research has to intensify efforts to strive for accuracy and completeness to enable women to exert their autonomy as fully informed patients.

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“…The theoretical failure rate of COCs is extremely low, being 0.3 per 100 woman-years. 5 However, poor adherence is a major factor in limiting effectiveness, particularly in younger users. Although up to four pills can be missed in the middle week of a pack without the need for emergency contraception, late starts are the main problem when the pill-free interval is extended beyond the usual seven days.…”

Section: Efficacymentioning

confidence: 99%

“…Consequently, the failure rate with typical use can be up to 9 per 100 woman-years (see Figure 2). 5 …”

Section: Efficacymentioning

confidence: 99%

Efficacy and side‐effects of oral contraceptives

MacGregor¹

2017

Prescriber

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Contraceptive efficacy

Cited by 37 publications

References 0 publications

Pregnancy Risk among Black, White, and Hispanic Teen Girls in New York City Public Schools

Pregnancy Risk among Black, White, and Hispanic Teen Girls in New York City Public Schools

Are Women Adequately Informed by Publications on Contraception? An International Perspective

Efficacy and side‐effects of oral contraceptives

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