Risk factors for the occurrence of undifferentiated carcinoma of nasopharyngeal type: A case-control study

Author:

Nesic Vladimir1,Sipetic Sandra1,Vlajinac Hristina2ORCID,Stosic-Divjak Svetlana2,Jesic Snezana2

Affiliation:

1. Institut za epidemiologiju, Medicinski fakultet, Beograd

2. Institut za otorinolaringologiju i maksilofacijalnu hirurgiju, Klinički centar Srbije, Beograd

Abstract

Introduction. The incidence rate of nasopharyngeal carcinoma in Serbia is less than one per 100,000 citizens, which classifies it as a region with low incidence for this disease. Objective. The aim of this study was to test some hypotheses of the risk factors for undifferentiated carcinoma of nasopharyngeal type (UCNT) in the low incidence population. Methods. A case-control study was used for the research. The study included 45 cases with histopathological diagnosis of UCNT and 90 controls. Cases and the controls were individually matched by sex, age (?3 years), and place of residence (city-village). Data were gathered about sociodemographic characteristics, occupational exposure to harmful agents, habits, diet, personal history, and family history. In the analysis of the data, conditional univariate and multivariate logistic regression analyses were applied. Results. According to the results of multivariate logistic regression analysis UCNT was significantly positively associated with 'passive smoking' of tobacco in the family during childhood, frequent consumption of industrially manufactured food additives for enhancing flavour and frequent consumption of white bread. UCNT was significantly negatively associated with frequent consumption of margarine, olive oil and cornbread. Conclusion. In our low incidence population, an independent risk factor for the occurrence of UCNT was 'passive smoking' of tobacco in the family during childhood, use of industrially manufactured food with additives for enhancing flavour and consumption of white bread. Multicentric study enrolling a greater number of cases would be desirable.

Publisher

National Library of Serbia

Subject

General Medicine

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