Evidence map›Paper›PMID 40038702›Full record

ArticleBMC cancer2025

Is body mass index a risk factor for lymphnode metastasis in penile cancer?

Roberto Dias Machado, Eliney Ferreira Faria, Antonio Antunes Rodrigues Júnior, Filipe Stirpari, Rafael Neuppmann Feres, Philippe E Spiess, Shahrokh F Shariat, Leonardo Oliveira Reis, Rodolfo Borges Dos Reis

Abstract read
In one paragraph

Article in BMC cancer, 2025. 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
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.

  1. 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

9 authors.

Roberto Dias MachadoBarretos Cancer Hospital, Barretos, SP, Brazil.
Eliney Ferreira FariaBarretos Cancer Hospital, Barretos, SP, Brazil.
Antonio Antunes Rodrigues JúniorMedicine School of Ribeirão Preto, University of São Paulo, São Paulo, SP, Brazil.
Filipe StirpariMedicine School of Ribeirão Preto, University of São Paulo, São Paulo, SP, Brazil.
Rafael Neuppmann FeresMedicine School of Ribeirão Preto, University of São Paulo, São Paulo, SP, Brazil.
Philippe E SpiessDepartment of Genitourinary Oncology, H. Lee Moffitt Cancer Center, Tampa, FL, USA.
Shahrokh F ShariatDepartment of Urology, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria.
Leonardo Oliveira ReisUroScience, State University of Campinas, Unicamp, and ImmunOncology, Pontifical Catholic University of Campinas, São Paulo, SP, Brazil. reisleo.l@gmail.com.ORCID http://orcid.org/0000-0003-2092-414X
Rodolfo Borges Dos ReisMedicine School of Ribeirão Preto, University of São Paulo, São Paulo, SP, Brazil. rodolforeis@fmrp.usp.br.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionObese patients with penile cancer may have more advanced disease. This study evaluated the association of obesity with penile cancer and the risk of lymph node metastases in patients who underwent inguinal lymphadenectomy.

methodsWe retrospectively reviewed the charts of 197 penile cancer (PC) patients from January 2000 to December 2011. Seventy underwent inguinal lymphadenectomy. For this subgroup, chi-square analysis evaluated the correlations of sociodemographic, clinical, and pathological variables with the presence of positive inguinal lymph nodes. Patients were divided into normal weight, overweight, and obese categories according to body mass index (BMI). The mean numbers of positive and resected lymph nodes were compared for each BMI category.

resultsThe percentage of overweight men in the Brazilian population and among patients with PC was 52.6% and 42.8%, respectively. For patients who underwent lymphadenectomy, the mean BMIs were 25.9 ± 6. Most patients were white, married, had a lower education level, and had no history of smoking. Partial penectomy was the most frequently performed surgery; lymphovascular invasion occurred in 45.7%, and lymph node metastasis occurred in 52.9% of cases. The mean numbers of resected and positive lymph nodes for normal weight, overweight, and obesity were 21.1 and 2.2, 23.3 and 2.2, and 16.8 and 1.5, respectively.

conclusionOverweight and obesity were less frequently seen in patients with PC than in the Brazilian population. BMI was not a risk factor for developing lymph node metastasis; the only predictive factor for lymph node metastasis was the presence of lymphovascular invasion.

Indexed as

Body Mass IndexObesityPenile NeoplasmsAdultAgedBrazilHumansLymphatic MetastasisLymph Node ExcisionLymph NodesMaleMiddle AgedOverweightRetrospective StudiesRisk FactorsLymphadenectomyObesityPenile cancerPrognostic factors

Identifiers

PMID40038702
PMCPMC11881301

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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.