title: Comparison of the Carlsson-Dent and GERD-Q questionnaires for gastroesophageal reflux disease symptom detection in a general population.
abstract: BACKGROUND
  Gastroesophageal reflux disease (GERD) is an extremely common pathology in the general population and one of the main reasons for consultation in gastroenterology. There are different instruments for detecting its symptoms, but few studies comparing one tool with another have been conducted in Mexico.
  
  
  OBJECTIVE
  To compare the effectiveness of the Carlsson-Dent questionnaire (CDQ) and the GERD-Q questionnaire (GQQ) in detecting GERD symptoms in a general population.
  
  
  METHODS
  A prospective, descriptive, cross-sectional study was conducted on 220 individuals in an open population within the time frame of May-June 2015. The subjects were evaluated through the self-assessment CDQ and GQQ. The positive scores from the CDQ (≥ 4) were compared with those of the GQQ (≥ 8), to determine which of the two instruments more easily detected patients with GERD symptoms.
  
  
  RESULTS
  Fifty-seven percent of the patients were men and the mean patient age was 38.1 years. Fifty percent of the subjects presented with GERD symptoms with a positive score in at least one questionnaire; 45% had positive CDQ results and 23% had positive GQQ results. Fifty-seven percent of the patients with a positive CDQ score presented with overweight/obesity, as did 72% of the patients with a positive GQQ result. Finally, 20% of the individuals had positive results for reflux symptoms in both questionnaires.
  
  
  CONCLUSIONS
  There was a prevalence of GERD symptoms in 50% of the individuals studied from a general population. The GQQ detected a greater number of GERD symptoms in patients that presented with overweight/obesity and the CDQ was considered easier for patients to understand and answer. It is striking that there was only 20% agreement between the two questionnaires, suggesting that they may be useful for identifying GERD symptoms in different populations.
authors.affiliation: Centro de Investigación de Enfermedades Hepáticas y Gastroenterología, Pachuca de Soto, Hidalgo, México. Electronic address: centro_investigacion_ehg@hotmail.com.
authors.forename: R
authors.initials: R
authors.lastname: Contreras-Omaña
authors.affiliation: Escuela de Medicina «Dr. José Sierra Flores», Área de Ciencias de la Salud, Universidad del Noreste, Tampico, Tamaulipas, México.
authors.forename: O
authors.initials: O
authors.lastname: Sánchez-Reyes
authors.affiliation: Instituto de Ciencias de la Salud, Área Académica de Medicina, Universidad Autónoma del Estado de Hidalgo, Pachuca de Soto, Hidalgo, México.
authors.forename: E
authors.initials: E
authors.lastname: Ángeles-Granados
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D003430:Cross-Sectional Studies; D005260:Female; D005764:Gastroesophageal Reflux / Q000175:diagnosis* / Q000453:epidemiology; D006801:Humans; D008297:Male; D008800:Mexico / Q000453:epidemiology; D008875:Middle Aged; D015995:Prevalence; D011446:Prospective Studies; D011795:Surveys and Questionnaires; D055815:Young Adult
keywords: Carlsson-Dent questionnaire; Cuestionario Carlsson-Dent; Cuestionario GERD-Q; Enfermedad por reflujo gastroesofágico; GERDQ questionnaire; Gastroesophageal reflux disease