title: Actinic cheilitis among agricultural workers in Campinas, Brazil.
abstract: OBJECTIVE
  To assess the prevalence of Actinic Cheilitis (AC) among agricultural workers and analyze its risk factors.
  
  
  METHODS
  A cross sectional epidemiological study. A lip lesion was defined as an abnormal change on the lip mucosa surface, such as erythematous pigmented, ulcerative or swelling (Cataldo and Doku, 1981). Data were gathered according to age group, gender, ethnicity-time and frequency of occupational sunlight exposure, smoking habits, drinking habits and socio-economic status.
  
  
  METHODS
  Sugar-cane plantation farms in Brazil.
  
  
  METHODS
  Full-time workers of both genders employed at sugar-cane plantation farms for at least six months.
  
  
  METHODS
  Correlations between AC prevalence, demographic and socioeconomic risk factors.
  
  
  RESULTS
  202 people were examined and the prevalence of AC was 39.6%. Results revealed that being black (0.15-0.88- 95% CI; OR = 0.36; p = 0.025) or mulatto (0.21-0.82- 95% CI; OR = 0.42; p =0.011) decreased the risk for AC, while age and gender sex had no effect. In relation to socioeconomic variables, formal education and more than four years of education (0.07-0.68- 95% CI; OR = 0.22; p = 0.009) decreased the risk for AC. Moreover, drinking alcohol was a risk for AC (1.05-3.37- 95% CI; OR = 1.88; p = 0.034), while tobacco smoking was not (0.60-2.02- 95% CI; OR = 1.10; p = 0.763).
  
  
  CONCLUSIONS
  The prevalence of AC is high in agricultural workers who were fairskinned, had low education and high alcohol intake. Prevention and early diagnosis are required for workers exposed to sunlight.
authors.affiliation: Department of Oral Pathology, São Leopoldo Mandic Research Center, Brazil.
authors.forename: J L R
authors.initials: JL
authors.lastname: Junqueira
authors.forename: M
authors.initials: M
authors.lastname: Bönecker
authors.forename: C
authors.initials: C
authors.lastname: Furuse
authors.forename: P de Camargo
authors.initials: Pde C
authors.lastname: Morais
authors.forename: F M
authors.initials: FM
authors.lastname: Flório
authors.forename: P R
authors.initials: PR
authors.lastname: Cury
authors.forename: V C
authors.initials: VC
authors.lastname: Araújo
mesh_terms: D000382:Agricultural Workers' Diseases / Q000453:epidemiology* / Q000209:etiology; D000428:Alcohol Drinking / Q000009:adverse effects; D044383:Black People / Q000706:statistics & numerical data; D001938:Brazil / Q000453:epidemiology; D002613:Cheilitis / Q000453:epidemiology* / Q000209:etiology*; D003430:Cross-Sectional Studies; D004522:Educational Status; D005260:Female; D006801:Humans; D016015:Logistic Models; D008297:Male; D016017:Odds Ratio; D015995:Prevalence; D012307:Risk Factors; D012923:Social Class; D012959:Socioeconomic Factors; D013472:Sunlight / Q000009:adverse effects*; D044465:White People / Q000706:statistics & numerical data