Evidence map›Paper›PMID 26000519›Full record

ArticleObstetrics and gynecology2015

Contraception after delivery and short interpregnancy intervals among women in the United States.

Kari White, Stephanie B Teal, Joseph E Potter

Abstract read
In one paragraph

Article in Obstetrics and gynecology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 70 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
70citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from 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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

70 citing papers in PubMed, 1 synthesis or guideline pooled it.

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  4. A Novel Approach to Postpartum Contraception Provision Combined with Infant Care: A Randomized, Controlled Trial.Women's health issues : official publication of the Jacobs Institute of Women's Health
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10 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors.

Kari WhiteDepartment of Health Care Organization & Policy, University of Alabama at Birmingham, Birmingham, Alabama; the Department of Obstetrics and Gynecology, University of Colorado School of Medicine, Aurora, Colorado; and the Population Research Center, University of Texas at Austin, Austin, Texas.
Stephanie B Teal
Joseph E Potter

Funding

Population Research CenterR24HD042849 · NICHD · UNIVERSITY OF TEXAS AUSTIN · PI HAYWARD, MARK D. · 2002 to 2016
$8.4M
NICHD NIH HHS R24 HD042849PHS HHS R24 042849
6 · The paper itself

Abstract

objectiveTo investigate women's patterns of contraceptive use after delivery and the association between method use and risk of pregnancy within 18 months.

methodsWe used the 2006-2010 National Survey of Family Growth to examine women's contraceptive use after delivery and at 3, 6, 12, and 18 months after giving birth. The sample included 3,005 births that occurred within 3 years of the survey date and for which information on contraceptive use was available. We estimated multivariable-adjusted Cox regression models to assess the association between women's method use and risk of pregnancy within 18 months after delivery. We also examined the percentage of pregnancies occurring 18 months or less after the index birth that were unintended.

resultsBetween delivery and 3 months postpartum, contraceptive use increased from 21% to 72%. At 3 months, 13% of women used permanent contraception, 6% used long-acting reversible contraceptives, 28% used other hormonal methods, and 25% relied on less-effective methods; the distribution of method use was similar in subsequent months. Among women using hormonal methods, 12.6% became pregnant within 18 months of delivery or less compared with 0.5% using permanent and long-acting contraception (adjusted hazard ratio [HR] 21.2, 95% confidence interval [CI] 6.17-72.8). Additionally, 17.8% of women using less-effective methods (HR 34.8, 95% CI 9.26-131) and 23% using no method (HR 43.2, 95% CI 12.3-152) became pregnant 18 months or less. At least 70% of pregnancies within 1 year after delivery were unintended.

conclusionFew women use long-acting reversible contraceptives after delivery, and those using less-effective methods have an increased risk of unintended pregnancy. LEVEL OF EVIDENCE: II.

Indexed as

Birth IntervalsContraception BehaviorPregnancy RateAdolescentAdultAge FactorsCoitus InterruptusCondomsContraceptionContraceptive Agents, FemaleContraceptive Devices, FemaleEducational StatusFemaleHealth SurveysHumansMaleContraceptive Agents, Female

Identifiers

PMID26000519
PMCPMC4443868

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Registered trials

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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.