Epidemiological survey of oral lesions in children and adolescents in a Brazilian population Camila Porto Pesso ˆa a, * ,1 , Te ´ cia Daltro Borges Alves a,2 , Nilton Ce ´ sar Nogueira dos Santos a,3 , Heloı ´sa Laı ´s Rosa ´ rio dos Santos a,4 , Alana de Ca ´ ssia Silva Azevedo b,5 , Jean Nunes dos Santos c,6 , Ma ´ rcio Campos Oliveira a,7 a Universidade Estadual de Feira de Santana, Departamento de Sau ´de, Nu ´cleo de Caˆncer Oral, Av. Transnordestina, s/n – Mo ´dulo VI, Bairro Novo Horizonte, CEP: 44036-900 Feira de Santana, BA, Brasil b Universidade de Sa˜o Paulo, Avenida Professor Lineu Prestes, 2277, Cidade Universita ´ria, CEP: 05508-000 Sao Paulo, SP, Brasil c Universidade Federal da Bahia, Faculdade de Odontologia, Departamento de Apoio Diagno ´stico e Terapeˆutica, Av. Arau ´jo Pinho, 62, Canela, CEP: 40110-150 Salvador, BA, Brasil International Journal of Pediatric Otorhinolaryngology 79 (2015) 1865–1871 A R T I C L E I N F O Article history: Received 26 March 2015 Received in revised form 18 August 2015 Accepted 19 August 2015 Available online 29 August 2015 Keywords: Oral diseases Children Adolescents A B S T R A C T Objectives: To identify the most frequent oral lesions in children and adolescents in Reference Units of Oral Lesions of Public Universities of Bahia, Brazil, in the period between 1996 and 2010, and estimate the association between socio-demographic factors and type of oral lesions found. Methods: Cross-sectional study using secondary data obtained from medical records, records of requests and reports of biopsies from patients aged between 0 and 19 years treated in Reference Units of Oral Lesions of Public Universities in Bahia, Brazil, in the period between 1996 and 2010. For data analysis, we used descriptive analysis of the variables, bivariate analysis by calculating the prevalence ratios (PR) to assess the association between oral lesions and gender, age and skin color, and the analysis of potential modifying and confounding effects by logistic regression modeling. To calculate the p-value of associations, we used the chi-square test, and p < 0.05 was considered statistically significant. Results: There were 360 records of patients between 0 and 19 years (8.7% of total records). The results revealed 72 different types of lesions. The most prevalent lesions were mucoceles (14.2%), fibroma (5.6%) and pyogenic granuloma (5.3%). The variable ‘‘age’’ was the only socio-demographic characteristics among those analyzed that showed a statistically significant association with both neoplastic and non- neoplastic lesions, according to bivariate analysis, considering the rates adjusted for potential confounders. Neoplastic lesions appeared more often in the age group 0–9 years, while the non- neoplastic lesions were more prevalent in individuals 10–19 years. There was no effect modification noted in the predictive models analyzed. * Corresponding author. Tel.: +55 07199339902/+55 07191281009/+55 07134887074. E-mail addresses: milllapp@yahoo.com.br, camilaportop@gmail.com (C.P. Pesso ˆa). 1 Doctoral student of Odontopaediatric at the Universidade Cruzeiro do Sul, UNICSUL (Southern Cross University), Master of Collective Health, Universidade Estadual de Feira de Santana, UEFS (State University of Feira de Santana), Feira de Santana, Brazil. Contribution: (1) study conception and design, or data acquisition, or data analysis and interpretation, (2) writing the article or critical review of the intellectual content. 2 Doctor of Public Health from the University of Sao Paulo – USP. Contribution: (1) study conception and design, or data acquisition, or data analysis and interpretation, (2) writing the article or critical review of the intellectual content, (3) approval of the final to be presented. 3 Doctoral student of Biotechnology at the ‘‘Universidade Estadual de Feira de Santana, UEFS’’ (State University of Feira de Santana), Feira de Santana, Brazil. Contribution: (1) study conception and design, or data acquisition, or data analysis and interpretation, (2) writing the article or critical review of the intellectual content. 4 Dental Surgeon at the Oral Cancer Nucleus of the ‘‘Universidade Estadual de Feira de Santana – BA’’, Brazil. Contribution: (1) study conception and design, or data acquisition, or data analysis and interpretation. 5 Master’s Student of Dentistry (Deontology and Forensic Dentistry) at the University of Sao Paulo – USP. Contribution: (1) study conception and design, or data acquisition, or data analysis and interpretation. 6 Doctor of Dentistry (Oral Pathology) from the University of Sao Paulo – USP. Contribution: (1) study conception and design, or data acquisition, or data analysis and interpretation, (2) writing the article or critical review of the intellectual content. 7 Doctor of Oral pathology from the Federal University of Rio Grande do Norte – RN. Contribution: (1) study conception and design, or data acquisition, or data analysis and interpretation, (2) writing the article or critical review of the intellectual content, (3) approval of the final to be presented. Contents lists available at ScienceDirect International Journal of Pediatric Otorhinolaryngology jo ur n al ho m ep ag e: ww w.els evier .c om /lo cat e/ijp o r l http://dx.doi.org/10.1016/j.ijporl.2015.08.026 0165-5876/ß 2015 Elsevier Ireland Ltd. All rights reserved.