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Towards DSM-V: exploring diagnostic thresholds for alcohol dependence and abuse
Rachel Grove1, Orla McBride, Tim Slade
1National Drug and Alcohol Research Centre, University of New South Wales, Sydney, NSW 2052, Australia. r.grove@unsw.edu.au
Current diagnostic thresholds for alcohol dependence and abuse show some validity. Further validation and exploration of dimensional approaches are recommended for alcohol use disorders.
Area of Science:
- Psychiatry and Epidemiology
- Addiction Research
- Diagnostic Criteria Validation
Background:
- The debate on alcohol use disorders (AUDs) as dimensional versus categorical constructs is ongoing.
- The upcoming DSM-V release prompted re-evaluation of diagnostic thresholds for alcohol dependence and abuse.
Purpose of the Study:
- To validate current diagnostic thresholds for alcohol dependence and abuse.
- To utilize epidemiological indicators such as mental health, disability, and service use for validation.
Main Methods:
- A representative sample of 4920 Australian adult drinkers was analyzed.
- Regression analyses assessed group differences across various diagnostic thresholds for AUDs.
Main Results:
- Limited support was found for the current threshold of three criteria for alcohol dependence and one for abuse.
- Several alternative cut-offs demonstrated consistent variations across epidemiological indicators.
Conclusions:
- Current diagnostic thresholds for alcohol dependence and abuse are adequate but need further validation.
- Systematic definition and validation using diverse methods are essential.
- Future research should consider combining AUDs and exploring additional diagnostic criteria.
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