Evidence map›Paper›PMID 35043954›Full record

ArticleJournal of the National Cancer Institute2022

Obstetrical and Perinatal Outcomes in Female Survivors of Childhood and Adolescent Cancer: A Population-Based Cohort Study.

Alina Zgardau, Joel G Ray, Nancy N Baxter, Chenthila Nagamuthu, Alison L Park, Sumit Gupta, Paul C Nathan

Open access · bronzeAbstract read
In one paragraph

Article in Journal of the National Cancer Institute, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 2 pooled it
8.8field-weighted citation impact, top 2% of its field
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

19 citing papers in PubMed, 2 syntheses or guidelines pooled it, 25 citations in OpenAlex.

  1. Pooled it
  2. 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
  3. Article
  4. Review
  5. Article
  6. Article
  7. Spanish Society of Medical Oncology recommendations for comprehensive assessment and care of cancer survivors' needs.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2025
    Review
  8. Article
  9. Doxorubicin-induced cardiotoxicity and risk factors.International journal of cardiology. Heart & vasculature · 2024
    Article
  10. Article
  11. Article
  12. Article
  13. The Burden of Surviving Childhood Medulloblastoma: A Population-Based, Matched Cohort Study in Ontario, Canada.Journal of clinical oncology : official journal of the American Society of Clinical Oncology · 2023
    Article
  14. Article
  15. Review
  16. Article
  17. Women at heart: Introducing gender cardio-oncology.Frontiers in cardiovascular medicine · 2022
    Review
  18. Article
  19. Cancer treatment and survivorship statistics, 2025.CA: a cancer journal for clinicians
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 3 institutions in 2 countries.

Alina ZgardauThe Hospital for Sick Children, Division of Haematology/Oncology, Toronto, ON, Canada.
Joel G RayICES, Toronto, ON, Canada.
Nancy N BaxterICES, Toronto, ON, Canada.ORCID 0000-0003-4793-4620
Chenthila NagamuthuICES, Toronto, ON, Canada.
Alison L ParkICES, Toronto, ON, Canada.ORCID 0000-0001-5369-7639
Sumit GuptaThe Hospital for Sick Children, Division of Haematology/Oncology, Toronto, ON, Canada.ORCID 0000-0003-1334-3670
Paul C NathanThe Hospital for Sick Children, Division of Haematology/Oncology, Toronto, ON, Canada.ORCID 0000-0003-0334-0871
St. Michael's Hospital · CAUniversity of Toronto · CAHospital for Sick Children · CA

Funding

CIHR Foundation Grant (CIHR 148470
6 · The paper itself

Abstract

backgroundThe likelihood of pregnancy and risk of obstetrical or perinatal complications is inadequately documented in female survivors of pediatric cancer.

methodsWe assembled a population-based cohort of female survivors of cancer diagnosed at age 21 years and younger in Ontario, Canada, between 1985 and 2012. Survivors were matched 1:5 to women without prior cancer. Multivariable Cox proportional hazards and modified Poisson models assessed the likelihood of a recognized pregnancy and perinatal and maternal complications.

resultsA total of 4062 survivors were matched to 20 308 comparisons. Median (interquartile range) age was 11 (4-15) years at cancer diagnosis and 25 (19-31) years at follow-up. By age 30 years, the cumulative incidence of achieving a recognized pregnancy was 22.3% (95% confidence interval [CI] = 20.7% to 23.9%) among survivors vs 26.6% (95% CI = 25.6% to 27.3%) among comparisons (hazard ratio = 0.80, 95% CI = 0.75 to 0.86). A lower likelihood of pregnancy was associated with a brain tumor, alkylator chemotherapy, cranial radiation, and hematopoietic stem cell transplantation. Pregnant survivors were as likely as cancer-free women to carry a pregnancy >20 weeks (relative risk [RR] = 1.01, 95% CI = 0.98 to 1.04). Survivors had a higher relative risk of severe maternal morbidity (RR = 2.31, 95% CI = 1.59 to 3.37), cardiac morbidity (RR = 4.18, 95% CI = 1.89 to 9.24), and preterm birth (RR = 1.57, 95% CI = 1.29 to 1.92). Preterm birth was more likely in survivors treated with hematopoietic stem cell transplantation (allogenic: RR = 8.37, 95% CI = 4.83 to 14.48; autologous: RR = 3.72, 95% CI = 1.66 to 8.35).

conclusionsSurvivors of childhood or adolescent cancer are less likely to achieve a pregnancy and, once pregnant, are at higher risk for severe maternal morbidity and preterm birth.

Indexed as

NeoplasmsPremature BirthAdolescentAdultChildCohort StudiesFemaleHumansInfant, NewbornOntarioPregnancySurvivorsYoung Adult

Identifiers

PMID35043954
PMCPMC9002289
OpenAlexW4206803858

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.