Do words matter? Incongruent responses to inconsistently worded AUDIT-C alcohol screening instruments.
The first 3 questions of the Alcohol Use Disorders Identification Test (AUDIT-C) are often used as a brief alcohol screening instrument. However, the implications of common modifications made to the original AUDIT questions and response options have not been considered. The authors examined existing data from a randomized controlled trial of 310 persons with human immunodeficiency virus/acquired immunodeficiency syndrome (HIV/AIDS) that was testing the efficacy of 2 antiretroviral medication adherence interventions. Logistic regression was used to model the probability of participants having inconsistent AUDIT-C item responses. Three patterns of conflicting responses to the AUDIT-C items were identified. Common item modifications resulted in 14% (n = 48) of the parent study sample reporting conflicting responses across related AUDIT-C items. The odds of having conflicting data were 3 times greater in opioid users (odds ratio [OR] = 3.139, 95% confidence interval [CI] = 1.267-7.777, P = .01) and greater in persons with higher levels of conscientiousness (OR = 1.053, 95% CI = 1.006-1.103, P = .03). Inconsistent question format and response options may impede proper scoring and interpretation of the AUDIT-C. Further discussion and consensus building are needed on the psychometrically ideal version of the AUDIT-C.
Center for Health Equity Research and Promotion, Department of Veterans Affairs Medical Center, Pittsburgh, Pennsylvania 15206, USA. Lauren.Broyles@va.gov
Lauren Matukaitis
LM
Broyles
Adam J
AJ
Gordon
Susan M
SM
Sereika
Christopher M
CM
Ryan
Judith A
JA
Erlen
D000328:Adult; D000368:Aged; D019973:Alcohol-Related Disorders / Q000175:diagnosis*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011594:Psychometrics; D015203:Reproducibility of Results; D011795:Surveys and Questionnaires / Q000592:standards*