Evidence map›Paper›PMID 30403424›Full record

ArticleCancer2018

Pregnancy after cancer: Does timing of conception affect infant health?

Kathleen P Hartnett, Ann C Mertens, Michael R Kramer, Timothy L Lash, Jessica B Spencer, Kevin C Ward, Penelope P Howards

Abstract read
In one paragraph

Article in Cancer, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed, 5 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

35 citing papers in PubMed, 5 syntheses or guidelines pooled it.

  1. Cancer and fertility management: FIGO best practice advice.International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics · 2025
    Guideline
  2. Pregnancy after cancer: FIGO Best practice advice.International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics · 2025
    Guideline
  3. Pooled it
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  17. A Scoping Review of Preterm Birth Risk Factors.American journal of perinatology · 2024
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors.

Kathleen P HartnettDepartment of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia.
Ann C MertensDepartment of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia.
Michael R KramerDepartment of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia.
Timothy L LashDepartment of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia.
Jessica B SpencerDepartment of Gynecology and Obstetrics, Emory University School of Medicine, Atlanta, Georgia.
Kevin C WardDepartment of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia.
Penelope P HowardsDepartment of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia.

Funding

A Population-Based Study of Fertility in Female Survivors of Young Adult CancerR01HD066059 · NICHD · EMORY UNIVERSITY · PI HOWARDS, PENELOPE P. · 2010 to 2014
$3.1M
Training in Reproductive, Perinatal, Pediatric EpidemiologyT32HD052460 · NICHD · EMORY UNIVERSITY · PI DREWS-BOTSCH, CAROLYN DAWSON · 2006 to 2015
$2.2M
Achievement Rewards for College Scientists FoundationEunice Kennedy Shriver National Institute of Child Health and Human Development 1R01HD066059National Institute of Child Health and Human Development 1R01HD066059National Institute of Child Health and Human Development T32HD052460National Institutes of Health Reproductive, Perinatal & Pediatric Training Grant T32HD052460NICHD NIH HHS R01 HD066059NICHD NIH HHS T32 HD052460Reproductive, Perinatal & Pediatric Training Grant T32HD052460
6 · The paper itself

Abstract

backgroundThe objective of this retrospective cohort study was to determine whether women who conceive soon after treatment for cancer have higher risks of adverse pregnancy outcomes.

methodsVital records data were linked to cancer registry diagnosis and treatment information in 3 US states. Women who conceived their first pregnancy after diagnosis between ages 20 and 45 years with any invasive cancer or ductal carcinoma in situ were eligible. Log-binomial models were used to compare risks in cancer survivors who conceived in each interval to the risks in matched comparison births to women without cancer.

resultsWomen who conceived ≤1 year after starting chemotherapy for any cancer had higher risks of preterm birth than comparison women (chemotherapy alone: relative risk [RR], 1.9; 95% confidence interval [CI], 1.3-2.7; chemotherapy with radiation: RR, 2.4; 95% CI, 1.6-3.6); women who conceived ≥1 year after starting chemotherapy without radiation or ≥2 years after chemotherapy with radiation did not. In analyses imputing the treatment end date for breast cancer survivors, those who conceived ≥1 year after finishing chemotherapy with or without radiation had no higher risks than women without cancer. The risk of preterm birth in cervical cancer survivors largely persisted but was somewhat lower in pregnancies conceived after the first year (for pregnancies conceived ≤1 year after diagnosis: RR, 3.5; 95% CI, 2.2-5.4; for pregnancies conceived >1 year after diagnosis: RR, 2.4; 95% CI, 1.6-3.5).

conclusionsIn women who received chemotherapy, the higher risk of preterm birth was limited to those survivors who had short intervals between treatment and conception.Cancer 2018;124:000-000.

Indexed as

Cancer SurvivorsAdultAntineoplastic AgentsFemaleHumansModels, StatisticalPopulation SurveillancePregnancyPregnancy OutcomePremature BirthRegistriesRetrospective StudiesSurvivorsTime FactorsYoung AdultAntineoplastic Agentsbreast neoplasmsdrug therapyepidemiologypregnancysurvivorship

Identifiers

PMID30403424
PMCPMC7886368

What OpenQuestion holds

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Registered trials

None linked

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.