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. 2014 Aug 15;120(16):2514-21.
doi: 10.1002/cncr.28763. Epub 2014 May 13.

Infections among long-term survivors of childhood and adolescent cancer: a report from the Childhood Cancer Survivor Study

Joanna L Perkins  1 , Yan Chen, Anne Harris, Lisa Diller, Marilyn Stovall, Gregory T Armstrong, Yutaka Yasui, Leslie L Robison, Charles A Sklar; Childhood Cancer Survivor Study
Affiliations

Infections among long-term survivors of childhood and adolescent cancer: a report from the Childhood Cancer Survivor Study

Joanna L Perkins et al. Cancer. .

Abstract

Background: Little is known about infections among adult survivors of childhood cancer. The authors report the occurrence of infections and risk factors for infections in a large cohort of survivors of childhood cancer.

Methods: The Childhood Cancer Survivor Study cohort was used to compare incidence rates of infections among 12,360 5-year survivors of childhood cancer with the rates of 4023 siblings. Infection-related mortality of survivors was compared with that of the US population. Demographic and treatment variables were analyzed using Poisson regression to determine the rate ratios (RRs) and corresponding 95% confidence intervals (CIs) for associations with infectious complications.

Results: Compared with the US population, survivors were at an increased risk of death from infectious causes (standardized mortality ratio [SMR], 4.2; 95% CI, 3.2-5.4), with the greatest risk observed among females (SMR, 3.2; 95% CI, 1.5-6.9) and among those who had been exposed to total body irradiation (SMR, 7.8; 95% CI, 1.8-33.0). Survivors also reported higher rates than siblings of overall infectious complications (RR, 1.3; 95% CI, 1.2-1.4) and higher rates of all categories of infection.

Conclusions: Survivors of childhood cancer remain at elevated risk for developing infectious-related complications, and they have a higher risk of infection-related mortality years after therapy. Further investigation is needed to provide insight into the mechanisms for the observed excess risks.

Keywords: adolescent cancer; childhood cancer; infections; late effects; survivorship.

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Figures

Figure 1
Figure 1
Cumulative incidence of infection-related complications by category of infection, and of infectious-related mortality.
Figure 2
Figure 2
Compared to siblings, survivors of childhood cancer have higher rates of infectious complications. In comparison to the U.S. population, survivors are at an increased risk of death from infections.
See this image and copyright information in PMC

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