title: [Overlap of irritable bowel syndrome and functional dyspepsia based on Rome III criteria in medical students from a private university in Lima, Peru].
abstract: OBJECTIVE
  To determine the prevalence of irritable bowel syndrome and functional dyspepsia in medical students from a private university in Lima, Peru. Furthermore, to determine the associated factors with these diseases.
  
  
  METHODS
  Observational descriptive and retrospective cross sectional study. Medical students from a private university in Lima were surveyed using a Rome III questionnaire for functional disorders and the STEPwise auto survey for defining the variables of alcohol and tobacco. For data analysis the Stata 11.0 program was used.
  
  
  RESULTS
  Of the 608 students, 543 answered the questionnaire. The prevalence of Irritable Bowel Syndrome was 12.4%, 16.9% of dyspepsia, and of both diseases simultaneously, a prevalence of 7.1% was found. Alcohol consumption in the total population was 89.4% and 29.0% of tobacco. Association between both disorders was found (OR 10.47, 95% CI 5.08 to 21.55; p < 0.001), dyspepsia was associated with sex (OR: 0.16, 95% CI 0.07 to 0.36 p < 0.001), with alcohol consumption (OR: 5.22, 95% CI 23.99 1,13- p = 0.034) and with irritable bowel syndrome (OR: 9.88, 95% CI 4.78 to 20.46 p <0.001). Both conditions together were associated with sex (OR: 0.20, 95% CI from 0.06 to 0.60 p = 0.004) and daily consumption of tobacco (OR: 3.23, 95% CI 1.17 to 8.89 p = 0.023).
  
  
  CONCLUSIONS
  A prevalence of 12.4% of Irritable Bowel Syndrome and 16.9% of dyspepsia was determined. An overlap of 7.1% of these diseases was reported.
authors.affiliation: Escuela de Medicina, Universidad Peruana de Ciencias Aplicadas, Lima, PerÚ.
authors.forename: Iván
authors.initials: I
authors.lastname: Vargas-Matos
authors.affiliation: Escuela de Medicina, Universidad Peruana de Ciencias Aplicadas, Lima, PerÚ; Sociedad CientÍfica de Estudiantes de Medicina UPC, Lima, PerÚ.
authors.forename: Luis Fernando
authors.initials: LF
authors.lastname: Ng-Sueng
authors.affiliation: Escuela de Medicina, Universidad Peruana de Ciencias Aplicadas, Lima, PerÚ.
authors.forename: Joel
authors.initials: J
authors.lastname: Flores-Arriaga
authors.affiliation: Escuela de Medicina, Universidad Peruana de Ciencias Aplicadas, Lima, PerÚ.
authors.forename: Santiago
authors.initials: S
authors.lastname: Beltrán-Flores
authors.affiliation: Escuela de Medicina, Universidad Peruana de Ciencias Aplicadas, Lima, PerÚ.
authors.forename: Mauricio
authors.initials: M
authors.lastname: Lema-Correa
authors.affiliation: Escuela de Medicina, Universidad Peruana de Ciencias Aplicadas, Lima, PerÚ; Hospital Guillermo Kaelin de la Fuente, Essalud, Lima, PerÚ.
authors.forename: Alejandro
authors.initials: A
authors.lastname: Piscoya
authors.affiliation: Escuela de Medicina, Universidad Peruana de Ciencias Aplicadas, Lima, PerÚ.
authors.forename: Percy
authors.initials: P
authors.lastname: Mayta-Tristán
mesh_terms: D000293:Adolescent; D000328:Adult; D003430:Cross-Sectional Studies; D003937:Diagnosis, Differential; D004415:Dyspepsia / Q000150:complications / Q000175:diagnosis / Q000453:epidemiology* / Q000209:etiology; D005260:Female; D006306:Health Surveys; D006801:Humans; D043183:Irritable Bowel Syndrome / Q000150:complications / Q000175:diagnosis / Q000453:epidemiology* / Q000209:etiology; D008297:Male; D010568:Peru / Q000453:epidemiology; D015995:Prevalence; D012189:Retrospective Studies; D012307:Risk Factors; D012577:Schools, Medical; D012720:Severity of Illness Index; D013337:Students, Medical; D011795:Surveys and Questionnaires; D055815:Young Adult