Evidence map›Paper›PMID 34483740›Full record

ArticleMateria socio-medica2021

Neonatal Birth Weight of the Woman as a Risk Factor for Breast Cancer in her Life: a Case-Control Bicentric Study.

Anastasia Bothou, Stefanos Zervoudis, Georgios Tsatsaris, Panagiota Pappou, Maria Liadopoulou, Georgios Iatrakis, Aggeliki Gerende, Anna Chalkidou, Nikolaos Nikolettos, Panagiotis Tsikouras

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In one paragraph

Article in Materia socio-medica, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact, top 88% 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

1 citing paper in PubMed, 0 citations in OpenAlex.

  1. Association of high birth weight with risk of early-onset colorectal cancer.Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology · 2026
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors at 2 institutions in 1 country.

Anastasia BothouDepartment of Midwifery, University of West Attica (UniWA), Athens, Greece.
Stefanos ZervoudisREA Hospital, Athens, Greece.
Georgios TsatsarisDepartment of Obstetrics and Gynecology, Democritus University of Thrace, Greece.
Panagiota PappouDepartment of Midwifery, University of West Attica (UniWA), Athens, Greece.
Maria LiadopoulouDepartment of Midwifery, University of West Attica (UniWA), Athens, Greece.
Georgios IatrakisDepartment of Midwifery, University of West Attica (UniWA), Athens, Greece.
Aggeliki GerendeDepartment of Obstetrics and Gynecology, Democritus University of Thrace, Greece.
Anna ChalkidouDepartment of Obstetrics and Gynecology, Democritus University of Thrace, Greece.
Nikolaos NikolettosDepartment of Obstetrics and Gynecology, Democritus University of Thrace, Greece.
Panagiotis TsikourasDepartment of Obstetrics and Gynecology, Democritus University of Thrace, Greece.
Democritus University of Thrace · GRUniversity of West Attica · GR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIt is a global fact that the birth weight is increasing during the years around the world and for this reason it is very important to be examined as a potential risk factor for breast cancer. According to data from World Health Organization, breast cancer is the second most frequent malignancy across the world, after lung cancer, in Europe including Greece in incidence and mortality for women between the ages 0-85 years old.

objectiveThe aim of this study was to investigate a possible association between neonatal birth weight of the women and breast cancer risk in Greek women. Although that many studies concluded that birth weight is positively related with breast cancer reinforcing the theory that breast cancer may originate in utero, some studies found no association. Moreover, the results from previous studies are inconsistent maybe due to several factors such as the study design and the number of cases.

methodsThis study was a case-control retrospective bicentric study. The case group included 238 women with breast cancer, while the control group included 153 women without breast cancer who consulted in two breast clinics in Greece. In all women, a clinical examination and breast ultrasound were achieved. Moreover, digital bilateral mammography was performed in patients older than 40 years.

resultsAccording to Fisher's exact analysis, there is a statistically significant relationship between the higher women's neonatal birth weight and the risk for breast cancer (p<0.001). More specifically in the group of women with breast cancer, 61% of them had more than 3500 grams birth weight, in contrast with 7.8 % in the control group. In our cohort, women who had birth weight more than 3500 grams are more likely to develop breast cancer in their life.

conclusionOur study trend to show that the increased neonatal birth weight may influence future risk of breast cancer. However, further studies with larger number of participants are needed in order to clarify the role of birth weight as a complementary risk factor of breast cancer.

Indexed as

Breast cancerbreast cancer risk factorsbreast malignancyneonatal birth weight

Identifiers

PMID34483740
PMCPMC8385737
OpenAlexW3184717229

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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.