Evidence map›Paper›PMID 27579740›Full record

ArticleAnais brasileiros de dermatologia

Non-melanoma skin cancer in Portuguese kidney transplant recipients - incidence and risk factors.

André Pinho, Miguel Gouveia, José Carlos Cardoso, Maria Manuel Xavier, Ricardo Vieira, Rui Alves

Open access · goldAbstract read
In one paragraph

Article in Anais brasileiros de dermatologia. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 3 pooled it
1.4field-weighted citation impact, top 17% 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

11 citing papers in PubMed, 3 syntheses or guidelines pooled it, 21 citations in OpenAlex.

  1. Pooled it
  2. Azathioprine and risk of non-melanoma skin cancers in organ transplant recipients: a systematic review and update meta-analysis.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2025
    Pooled it
  3. Pooled it
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  6. Observational
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  11. Incidence of nonmelanoma skin cancer in renal transplant recipients: A systematic review and meta-analysis.Journal of research in medical sciences : the official journal of Isfahan University of Medical Sciences · 2018
    Review
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

6 authors at 1 institution in 1 country.

André PinhoCentro Hospitalar e Universitário de Coimbra - Coimbra, Portugal.
Miguel GouveiaCentro Hospitalar e Universitário de Coimbra - Coimbra, Portugal.
José Carlos CardosoCentro Hospitalar e Universitário de Coimbra - Coimbra, Portugal.
Maria Manuel XavierCentro Hospitalar e Universitário de Coimbra - Coimbra, Portugal.
Ricardo VieiraCentro Hospitalar e Universitário de Coimbra - Coimbra, Portugal.
Rui AlvesCentro Hospitalar e Universitário de Coimbra - Coimbra, Portugal.
Hospitais da Universidade de Coimbra · PT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCancer is currently among the three leading causes of death after solid organ transplantation and its incidence is increasing. Non-melanoma skin cancer - squamous cell carcinoma and basal cell carcinoma - is the most common malignancy found in kidney transplant recipients (KTRs). The incidence of non-melanoma skin cancer in KTRs has not been extensively studied in Portugal.

objectivesTo determine the incidence of non-melanoma skin cancer in KTRs from the largest Portuguese kidney transplant unit; and to study risk factors for non-melanoma skin cancer.

methodsRetrospective analysis of clinical records of KTRs referred for the first time for a dermatology consultation between 2004 and 2013. A case-control study was performed on KTRs with and without non-melanoma skin cancer.

resultsWe included 288 KTRs with a median age at transplantation of 47 years, a male gender predominance (66%) and a median transplant duration of 3.67 years. One fourth (n=71) of KTRs developed 131 non-melanoma skin cancers, including 69 (53%) squamous cell carcinomas and 62 (47%) basal cell carcinomas (ratio squamous cell carcinoma: basal cell carcinoma 1.11), with a mean of 1.85 neoplasms per patient. Forty percent of invasive squamous cell carcinomas involved at least two clinical or histological high-risk features. The following factors were associated with a higher risk of non-melanoma skin cancer: an older age at transplantation and at the first consultation, a longer transplant duration and the presence of actinic keratosis. KTRs treated with azathioprine were 2.85 times more likely to develop non-melanoma skin cancer (p=0.01).

conclusionNon-melanoma skin cancer was a common reason for dermatology consultation in Portuguese KTRs. It is imperative for KTRs to have access to specialized dermatology consultation for early referral and treatment of skin malignancies.

Indexed as

Transplant RecipientsAdolescentAdultAgedAge FactorsBasal Cell CarcinomaCarcinoma, Squamous CellChildFemaleHumansImmunosuppressive AgentsIncidenceKaplan-Meier EstimateKidney TransplantationMaleMiddle AgedImmunosuppressive Agents

Identifiers

PMID27579740
PMCPMC4999103
OpenAlexW2518049672

What OpenQuestion holds

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LicenceCC BY-NC
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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.