Association between cancer and allergies: The prevalence of allergies and the incidence of cancer are both increasing worldwide. It has been hypothesized that atopy may affect the risk of some cancers.
Renata Kozłowska, Andrzej BożekEmail author and Jerzy Jarząb
Allergy, Asthma & Clinical Immunology201612:39
DOI: 10.1186/s13223-016-0147-8© The Author(s) 2016
Received: 21 April 2016Accepted: 2 August 2016Published: 11 August 2016
Abstract
Background
The prevalence of allergies and the incidence of cancer are both increasing worldwide. It has been hypothesized that atopy may affect the risk of some cancers.
Methods
In this study, 1525 patients (754 women and 771 men with a mean age of 52.7 ± 11.9 years) with different types of cancer were examined for the presence of allergies. Allergies were confirmed based on retrospective analysis of allergy diagnostic procedures in patients previously diagnosed with cancer. All patients were also analyzed for bronchial asthma and allergic rhinitis according to relevant guidelines. A control group of patients without cancer diagnoses was used for comparison.
Results
Patients with cancer had significantly fewer IgE-mediated allergic diseases than the control population. For the oncological group compared to the non-cancer patients, the odds ratios (ORs) for allergic rhinitis, atopic dermatitis, and bronchial asthma were 0.67 (95 % CI 0.52–0.81), 0.89 (95 % CI 0.78–0.99), and 1.03 (95 % CI 0.91–1.13), respectively. The mean serum concentrations of total IgE were significantly lower in the study population of patients with cancer than in the patients in the control group (45.98 ± 14.9 vs. 83.2 ± 40.1 IU/l; p < 0.05). There were no significant correlations between the type of cancer diagnosed and the form of allergy.
Conclusion
Our results indicate that the overall incidence of allergies, particularly allergic rhinitis, was lower in patients with some types of cancer. Further studies are needed to confirm our findings.
Keywords
Cancer Allergy IgE Asthma Allergic rhinitis Atopic dermatitis
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Publication date: June 2017 Source: Clinical Therapeutics, Volume 39, Issue 6 http://ift.tt/2tFQtkS http://ift.tt/2sHVf46
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