J Korean Soc Emerg Med.
2018 Jun;29(3):241-248. 10.0000/jksem.2018.29.3.241.
Validation and proposal for cut-off values of an abbreviated version of the Alcohol Use Disorder Identification Test using the Korean National Health and Nutrition Examination Survey
- Affiliations
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- 1Department of Emergency Medicine, Ewha Womans University Mokdong Hospital, Seoul, Korea.
- 2Deparment of Preventive Medicine, Ewha Womans University College of Medicine, Seoul, Korea.
- 3Deparment of Emergency Medicine, Ewha Womans University College of Medicine, Seoul, Korea. kyjung@ewha.ac.kr
- KMID: 2435508
- DOI: http://doi.org/10.0000/jksem.2018.29.3.241
Abstract
OBJECTIVE
Several abbreviated versions of the Alcohol Use Disorder Identification Test (AUDIT) have been developed and used widely in clinical settings. This paper provides evidence supporting the use of abbreviated versions of AUDIT by comparing the utility of various abbreviated versions and determining the cut-off values for the population of South Korea.
METHODS
Data were obtained from the 4th to 6th Korean National Health and Nutrition Examination Surveys. After calculating the whole AUDIT score, the cut-off value of at-risk drinking proposed by the World Health Organization was applied and the study sample was divided into normal and at-risk drinking groups. Receiver operating characteristic curves were drawn for the AUDIT-3rd question (Q3) alone, AUDIT-quantity and frequency (QF), AUDIT-consumption (C), AUDIT-4, and AUDIT-primary clinic (PC), and the optimal cut-off values were obtained for each group.
RESULTS
A total of 46,450 subjects were analyzed. The at-risk drinking group comprised 29.2% of all subjects. The area under the receiver operating characteristic curve (AUROC) of the abbreviated versions of AUDIT increased from 0.954 to 0.991 as the number of questions was increased from one to four. The differences in the AUROC between the abbreviated versions of AUDIT were statistically significant. The most appropriate cut-off values for AUDIT-Q3 alone, AUDIT-QF, AUDIT-C, AUDIT-4, and AUDIT-PC for adults over age 19 were 2, 4, 5, 6, and 4 points, respectively.
CONCLUSION
As the number of items analyzed increased from one to four, the AUROC increased to a statistically significant level. The cut-off values for the abbreviated versions of AUDIT were similar in South Korea to other countries.
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