ArticleBMC research notes2020
Age at first childbirth and breast cancer survival: a prospective cohort study.
Article in BMC research notes, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
What it found
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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.
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Who cites it
9 citing papers in PubMed, 14 citations in OpenAlex.
- Breast Cancer Molecular Subtypes and Receptor-Related Risk Factor Associations: A Cross-Sectional Study.Health science reports · 2026Article
- The association between parity, age of first full term pregnancy and invasive lobular breast cancer: a case-only analysis.Cancer treatment and research communications · 2026Article
- Predicting breast cancer risk and its association to biopsychosocial factors among Taiwanese women with a family history of breast cancer: an investigation based on the Gail model.BMC medical genomics · 2025Article
- Comprehensive Analysis of Predictors and Outcomes in Breast Cancer Screening in Romania: Insights from Demographic, Clinical, and Lifestyle Factors.Journal of clinical medicine · 2025Article
- Chemotherapy on hematological and biochemical parameters in breast cancer patients.Caspian journal of internal medicine · 2025Article
- Breast cancer: Epidemiology, risk factors and screening.Chinese journal of cancer research = Chung-kuo yen cheng yen chiu · 2023Article
- A review of the neurological complications of breast cancer.Journal of family medicine and primary care · 2022Review
- Associations of reproductive breast cancer risk factors with breast tissue composition.Breast cancer research : BCR · 2021Article
- Breast cancer in young women: a rising threat: A 5-year follow-up comparative study.Porto biomedical journalArticle
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveLate age at first childbirth is a well-established risk factor for breast cancer. Previous studies have, however, shown conflicting results to whether late age at first childbirth also influences the prognosis of breast cancer survival. The aim of this study was to examine age at first birth in relation to survival after breast cancer diagnosis.
resultsWe used information from the Malmö Diet and Cancer study. At baseline 17,035 women were included. All women were followed from the year they developed breast cancer until they either died or until the end of follow-up. All women were asked how many children they had given birth to and were then divided into different groups, ≤ 20, > 20 to ≤ 25, > 25 to ≤ 30 and > 30. Nulliparous women form a separate group. Survival analyses were then performed using Cox proportional hazard survival analysis. Women in all age groups had a lower risk of breast cancer specific death as compared to the reference group ≤ 20, however non-significantly. Nulliparous women had a higher risk of breast cancer specific death as compared to the same reference group, however these results were not statistically significant. We could not see any negative effect of late first childbirth on breast cancer specific survival.
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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.