Trial reportObstetrics and gynecology2006
Impact of increased access to emergency contraceptive pills: a randomized controlled trial.
Trial report in Obstetrics and gynecology, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 5 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
25 citing papers in PubMed, 5 syntheses or guidelines pooled it, 103 citations in OpenAlex.
- Effectiveness and Harms of Contraceptive Counseling and Provision Interventions for Women : A Systematic Review and Meta-analysis.Annals of internal medicine · 2022Pooled it
- Interventions for emergency contraception.The Cochrane database of systematic reviews · 2019Pooled it
- Interventions for emergency contraception.The Cochrane database of systematic reviews · 2017Pooled it
- Interventions for preventing unintended pregnancies among adolescents.The Cochrane database of systematic reviews · 2016Pooled it
- Advance provision of emergency contraception for pregnancy prevention (full review).The Cochrane database of systematic reviews · 2007Pooled it
- Increased access to emergency contraception: why it may fail.Human reproduction (Oxford, England) · 2009Trial
- Attitude and behavior effects in a randomized trial of increased access to emergency contraception.Obstetrics and gynecology · 2009Trial
- Maximizing the effectiveness of 1.5 mg levonorgestrel for emergency contraception: The case for precoital use.Contraception: X · 2024Article
- Dual Protection Messaging for Adolescents and Young Adults in the Setting of Over-the-Counter Hormonal Contraception: A Human-Centered Design Approach.Journal of pediatric and adolescent gynecology · 2022Article
- Effects of preconception care and periconception interventions on maternal nutritional status and birth outcomes in low- and middle-income countries: A systematic review.Campbell systematic reviews · 2021Review
- Trends of Contraceptive Choices Among Young Women in Inner City Houston.Journal of pediatric and adolescent gynecology · 2019Article
- Awareness and Attitudes Toward Emergency Contraceptives Among College Students in South India.Journal of obstetrics and gynaecology of India · 2016Article
- Improving Adolescent Sexual and Reproductive Health: A Systematic Review of Potential Interventions.The Journal of adolescent health : official publication of the Society for Adolescent Medicine · 2016Review
- Teaching Trainees to Deliver Adolescent Reproductive Health Services.Journal of pediatric and adolescent gynecology · 2016Article
- Association between Increased Emergency Contraception Availability and Risky Sexual Practices.Health services research · 2015Article
- Emergency contraception. Widely available and effective but disappointing as a public health intervention: a review.Human reproduction (Oxford, England) · 2015Review
- Emergency contraception review: evidence-based recommendations for clinicians.Clinical obstetrics and gynecology · 2014Review
- Awareness and attitudes towards emergency contraceptive pills among young people in the entertainment places, Vientiane City, Lao PDR.BMC women's health · 2013Article
- Emergency contraception and risk for sexually transmitted infections among U.S. women.Journal of women's health (2002) · 2012Article
- Emergency contraceptive pills: Exploring the knowledge and attitudes of community health workers in a developing Muslim country.North American journal of medical sciences · 2010Article
Corrections and comments
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
Abstract
objectiveTo assess how a strategy to maximize access to emergency contraceptive pills would affect rates of pregnancy and sexually transmitted infections.
methodsSexually active women, 14-24 years old, were randomly assigned to two methods of access to emergency contraceptive pills: increased access (two packages of pills dispensed in advance with unlimited resupply at no charge) or standard access (pills dispensed when needed at usual charges). Participants were followed for 1 year to assess incidence of pregnancy, gonorrhea, chlamydia, and trichomonas.
resultsThe numbers of women enrolled in the increased and standard access groups were 746 and 744, respectively. More than 93% of participants completed a full year of follow-up. The incidence of pregnancy was similar in both groups (increased access group: 9.9/100 woman years, 95% confidence interval [CI] 7.7-12.6; standard access group: 10.5/100 woman years, 95% CI 8.2-13.2). Aggregate rates of gonorrhea, chlamydia, and trichomonas were also similar in the two groups (increased access group: 6.9/100 woman years, 95% CI 5.1-9.1; standard access group: 7.6/100 woman years, 95% CI 5.7-9.9). The increased access group used emergency contraceptive pills substantially more often and sooner after coitus than the standard access group. No other differences were noted between groups in self-reported measures of sexual behavior and contraceptive use.
conclusionThis intensive strategy to enhance access to emergency contraceptive pills substantially increased use of the method and had no adverse impact on risk of sexually transmitted infections. However, it did not show benefit in decreasing pregnancy rates. LEVEL OF EVIDENCE: II-1.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.