Risk of basal cell carcinoma in Swedish organ transplant recipients: a population-based study

Summary Background Risk of basal cell carcinoma (BCC) has been reported to be several‐fold increased among organ transplant recipients (OTRs). However, due to lack of reliable BCC registration, population‐based risk estimates are scarce. Objectives To characterize risk of BCC among OTRs compared wit...

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Veröffentlicht in:British journal of dermatology (1951) 2016-01, Vol.174 (1), p.95-103
Hauptverfasser: Krynitz, B., Olsson, H., Lundh Rozell, B., Lindelöf, B., Edgren, G., Smedby, K.E.
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container_end_page 103
container_issue 1
container_start_page 95
container_title British journal of dermatology (1951)
container_volume 174
creator Krynitz, B.
Olsson, H.
Lundh Rozell, B.
Lindelöf, B.
Edgren, G.
Smedby, K.E.
description Summary Background Risk of basal cell carcinoma (BCC) has been reported to be several‐fold increased among organ transplant recipients (OTRs). However, due to lack of reliable BCC registration, population‐based risk estimates are scarce. Objectives To characterize risk of BCC among OTRs compared with the general population, and contrast with risk of cutaneous squamous cell carcinoma (SCC). Subjects and methods OTRs transplanted during 2004–2011 were identified through national healthcare registers and linked with the nationwide Swedish BCC Register initialized in 2004. Relative risk of BCC was expressed as standardized incidence ratios (SIR) with 95% confidence intervals (CI). Results Altogether, 4023 transplanted patients developed 341 BCCs during follow‐up. Compared with the general population, the relative risk of BCC was increased sixfold (SIR 6·1, 95% CI 5·4–6·9). The risk was higher in kidney and heart/lung than in liver recipients (SIRkidney 7·2, 6·3–8·3; SIRheart/lung 5·8, 4·0–8·2; SIRliver 2·6, 1·7–4·0), and risk increased with time since transplantation (Ptrend < 0·01). The SCC to BCC ratio was 1 : 1·7 and BCC developed earlier after transplantation than SCC. Distribution of anatomical sites and histological types did not differ substantially between OTR‐ and population‐BCCs. Conclusions Risk of BCC was strikingly elevated in OTRs compared with the general population. Risk was higher in kidney recipients and increased with follow‐up time. These findings support a tumour‐promoting effect of immunosuppressive drugs in BCC development. The low SCC to BCC ratio was possibly attributed to short follow‐up time. What's already known about this topic? Transplant recipients are at high risk of developing skin cancer, especially squamous cell carcinoma (SCC) but also basal cell carcinoma (BCC). Population‐based estimates of risk of BCC are scarce due to poor registration. What does this study add? The relative risk of post‐transplant BCC was increased sixfold compared with the background population, and most pronounced in kidney recipients. BCCs developed earlier after transplantation than SCCs. Linked Comment: Li, et al, Br J Dermatol 2016; 174: 16–17.
doi_str_mv 10.1111/bjd.14153
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However, due to lack of reliable BCC registration, population‐based risk estimates are scarce. Objectives To characterize risk of BCC among OTRs compared with the general population, and contrast with risk of cutaneous squamous cell carcinoma (SCC). Subjects and methods OTRs transplanted during 2004–2011 were identified through national healthcare registers and linked with the nationwide Swedish BCC Register initialized in 2004. Relative risk of BCC was expressed as standardized incidence ratios (SIR) with 95% confidence intervals (CI). Results Altogether, 4023 transplanted patients developed 341 BCCs during follow‐up. Compared with the general population, the relative risk of BCC was increased sixfold (SIR 6·1, 95% CI 5·4–6·9). The risk was higher in kidney and heart/lung than in liver recipients (SIRkidney 7·2, 6·3–8·3; SIRheart/lung 5·8, 4·0–8·2; SIRliver 2·6, 1·7–4·0), and risk increased with time since transplantation (Ptrend &lt; 0·01). The SCC to BCC ratio was 1 : 1·7 and BCC developed earlier after transplantation than SCC. Distribution of anatomical sites and histological types did not differ substantially between OTR‐ and population‐BCCs. Conclusions Risk of BCC was strikingly elevated in OTRs compared with the general population. Risk was higher in kidney recipients and increased with follow‐up time. These findings support a tumour‐promoting effect of immunosuppressive drugs in BCC development. The low SCC to BCC ratio was possibly attributed to short follow‐up time. What's already known about this topic? Transplant recipients are at high risk of developing skin cancer, especially squamous cell carcinoma (SCC) but also basal cell carcinoma (BCC). Population‐based estimates of risk of BCC are scarce due to poor registration. What does this study add? The relative risk of post‐transplant BCC was increased sixfold compared with the background population, and most pronounced in kidney recipients. BCCs developed earlier after transplantation than SCCs. 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However, due to lack of reliable BCC registration, population‐based risk estimates are scarce. Objectives To characterize risk of BCC among OTRs compared with the general population, and contrast with risk of cutaneous squamous cell carcinoma (SCC). Subjects and methods OTRs transplanted during 2004–2011 were identified through national healthcare registers and linked with the nationwide Swedish BCC Register initialized in 2004. Relative risk of BCC was expressed as standardized incidence ratios (SIR) with 95% confidence intervals (CI). Results Altogether, 4023 transplanted patients developed 341 BCCs during follow‐up. Compared with the general population, the relative risk of BCC was increased sixfold (SIR 6·1, 95% CI 5·4–6·9). The risk was higher in kidney and heart/lung than in liver recipients (SIRkidney 7·2, 6·3–8·3; SIRheart/lung 5·8, 4·0–8·2; SIRliver 2·6, 1·7–4·0), and risk increased with time since transplantation (Ptrend &lt; 0·01). The SCC to BCC ratio was 1 : 1·7 and BCC developed earlier after transplantation than SCC. Distribution of anatomical sites and histological types did not differ substantially between OTR‐ and population‐BCCs. Conclusions Risk of BCC was strikingly elevated in OTRs compared with the general population. Risk was higher in kidney recipients and increased with follow‐up time. These findings support a tumour‐promoting effect of immunosuppressive drugs in BCC development. The low SCC to BCC ratio was possibly attributed to short follow‐up time. What's already known about this topic? Transplant recipients are at high risk of developing skin cancer, especially squamous cell carcinoma (SCC) but also basal cell carcinoma (BCC). Population‐based estimates of risk of BCC are scarce due to poor registration. What does this study add? The relative risk of post‐transplant BCC was increased sixfold compared with the background population, and most pronounced in kidney recipients. BCCs developed earlier after transplantation than SCCs. 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numerical data</topic><topic>Transplantation</topic><topic>Transplants &amp; implants</topic><topic>Tumors</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Krynitz, B.</creatorcontrib><creatorcontrib>Olsson, H.</creatorcontrib><creatorcontrib>Lundh Rozell, B.</creatorcontrib><creatorcontrib>Lindelöf, B.</creatorcontrib><creatorcontrib>Edgren, G.</creatorcontrib><creatorcontrib>Smedby, K.E.</creatorcontrib><collection>Istex</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Immunology Abstracts</collection><collection>AIDS and Cancer Research Abstracts</collection><collection>ProQuest Health &amp; Medical Complete (Alumni)</collection><collection>Nursing &amp; Allied Health Premium</collection><collection>MEDLINE - Academic</collection><collection>SwePub</collection><collection>SwePub Articles</collection><collection>SWEPUB Linköpings universitet</collection><jtitle>British journal of dermatology (1951)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Krynitz, B.</au><au>Olsson, H.</au><au>Lundh Rozell, B.</au><au>Lindelöf, B.</au><au>Edgren, G.</au><au>Smedby, K.E.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Risk of basal cell carcinoma in Swedish organ transplant recipients: a population-based study</atitle><jtitle>British journal of dermatology (1951)</jtitle><addtitle>Br J Dermatol</addtitle><date>2016-01</date><risdate>2016</risdate><volume>174</volume><issue>1</issue><spage>95</spage><epage>103</epage><pages>95-103</pages><issn>0007-0963</issn><issn>1365-2133</issn><eissn>1365-2133</eissn><abstract>Summary Background Risk of basal cell carcinoma (BCC) has been reported to be several‐fold increased among organ transplant recipients (OTRs). However, due to lack of reliable BCC registration, population‐based risk estimates are scarce. Objectives To characterize risk of BCC among OTRs compared with the general population, and contrast with risk of cutaneous squamous cell carcinoma (SCC). Subjects and methods OTRs transplanted during 2004–2011 were identified through national healthcare registers and linked with the nationwide Swedish BCC Register initialized in 2004. Relative risk of BCC was expressed as standardized incidence ratios (SIR) with 95% confidence intervals (CI). Results Altogether, 4023 transplanted patients developed 341 BCCs during follow‐up. Compared with the general population, the relative risk of BCC was increased sixfold (SIR 6·1, 95% CI 5·4–6·9). The risk was higher in kidney and heart/lung than in liver recipients (SIRkidney 7·2, 6·3–8·3; SIRheart/lung 5·8, 4·0–8·2; SIRliver 2·6, 1·7–4·0), and risk increased with time since transplantation (Ptrend &lt; 0·01). The SCC to BCC ratio was 1 : 1·7 and BCC developed earlier after transplantation than SCC. Distribution of anatomical sites and histological types did not differ substantially between OTR‐ and population‐BCCs. Conclusions Risk of BCC was strikingly elevated in OTRs compared with the general population. Risk was higher in kidney recipients and increased with follow‐up time. These findings support a tumour‐promoting effect of immunosuppressive drugs in BCC development. The low SCC to BCC ratio was possibly attributed to short follow‐up time. What's already known about this topic? Transplant recipients are at high risk of developing skin cancer, especially squamous cell carcinoma (SCC) but also basal cell carcinoma (BCC). Population‐based estimates of risk of BCC are scarce due to poor registration. What does this study add? The relative risk of post‐transplant BCC was increased sixfold compared with the background population, and most pronounced in kidney recipients. BCCs developed earlier after transplantation than SCCs. Linked Comment: Li, et al, Br J Dermatol 2016; 174: 16–17.</abstract><cop>England</cop><pub>Blackwell Publishing Ltd</pub><pmid>26333521</pmid><doi>10.1111/bjd.14153</doi><tpages>9</tpages><orcidid>https://orcid.org/0000-0003-0896-1749</orcidid></addata></record>
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source Oxford University Press Journals All Titles (1996-Current); MEDLINE; Wiley Online Library Journals Frontfile Complete
subjects Adult
Age Distribution
Aged
Basal cell carcinoma
Carcinoma, Basal Cell - epidemiology
Drug development
Female
Health risk assessment
Humans
Immunosuppressive agents
Incidence
Kidneys
Male
Middle Aged
Organ Transplantation - adverse effects
Organ Transplantation - statistics & numerical data
Population
Population studies
Population-based studies
Prospective Studies
Risk Factors
Sex Distribution
Skin cancer
Skin Neoplasms - epidemiology
Squamous cell carcinoma
Sweden - epidemiology
Transplant Recipients - statistics & numerical data
Transplantation
Transplants & implants
Tumors
title Risk of basal cell carcinoma in Swedish organ transplant recipients: a population-based study
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