Services on Demand
Journal
Article
Indicators
Cited by SciELO
Access statistics
Related links
Cited by Google
Similars in SciELO
Similars in Google
Share
Revista Colombiana de Psiquiatría
Print version ISSN 0034-7450
Abstract
CAMPO-ARIAS, Adalberto; BARROS-BERMUDEZ, Jaider Alfonso and RUEDA-JAIMES, Germán Eduardo. Psychometric Properties of the CAGE Questionnaire for Alcohol Abuse: Results of Three Analyses. rev.colomb.psiquiatr. [online]. 2009, vol.38, n.2, pp.294-303. ISSN 0034-7450.
Introduction: The CAGE questionnaire is the scale most commonly used to identify abusive use of alcohol; however, many of its psychometric properties in the Colombian adult population are unknown. Objective: To determine the in-ternal consistency of the CAGE questionnaire among adult smokers and non-smokers who reported alcohol drinking within the last month, as well as its psychometric properties when compared with a structured clinical interview in a group of smokers from the general population of Bucaramanga, Colombia. Method: A validation study was designed for three groups within the general population. Internal consistency was calculated with Kuder-Richardson coeffcient, and the psychometric properties (sensitivity, specifcity, predictive values, likelihood ratios, Cohens kappa and area under receiver operating characteristic curve) were computed when CAGE was compared with a structured clinical interview among a sub-group of smokers. Results: The internal consistency was between 0.753 and 0.834. Among smokers, for the best cutoff point (2/4), the sensitivity was 66.7% (95%CI: 38.8-87.0); specifcity, 86.0% (95%CI: 73.7-93.3); positive predictive value, 55.6% (95%CI: 31.3-77.6); negative predictive value, 90.7% (95%CI: 78.9-96.5); positive likelihood ratio, 4.8; negative likelihood ratio, 0.39; Cohens kappa, 0.490 (95%CI: 0.253-0.727); and area under receiver operating characteristic curve, 0.805 (95%CI: 0.680-0.929). Conclusions: The CAGE questionnaire presents acceptable internal consistency, although among smokers it shows modest properties when compared with a clinical interview.
Keywords : Smoking; adult; validation studies.