Alcohol Use Disorder Diagnosis Stable From DSM-IV to DSM-5

Drink less alcohol to help curb dementia, officials warn - Telegraph
Drink less alcohol to help curb dementia, officials warn – Telegraph
The diagnostic criteria for alcohol use disorder in the DSM-5 and DSM-IV match up clinically.

The diagnostic criteria for alcohol use disorder matches up clinically in the DSM-5 and DSM-IV, suggests a new study. The criteria for alcohol use disorder under the DSM-5 captured the same percentage of diagnoses and nearly the exact same population as those captured using the DSM-IV, indicating little risk of over- or underdiagnosing the disorder based on the manual edition used.

Despite previous researchers’ concerns that the DSM-5 criteria changes would significantly increase, decrease or otherwise alter the incidence of alcohol use disorder cases, that doesn’t appear to have happened in this population of individuals with anxiety or depressive disorders, reported Francesco Bartoli, MD, PhD, of the University of Milano-Bicocca in Italy and his colleagues.

Among the changes made to the DSM-5 for alcohol-related disorders was collapsing the criteria for abuse and dependence into a single diagnostic category. At least two of the criteria in that category must be met for a diagnosis, and a criterion of craving, “the strong desire or urge to use alcohol,” replaced the criterion of having alcohol-related legal problems. Additionally, the DSM-5 uses a severity grade (mild, moderate, severe) to describe the disorder based on how many criteria are met.

“All individuals with a diagnosis of DSM-IV alcohol dependence, but only a portion of those with DSM-IV alcohol abuse, thus reach the DSM-5 diagnostic threshold for alcohol use disorder,” the investigators wrote. “On the other hand, a portion of so-called DSM-IV ‘diagnostic orphans,’ ie, people meeting one or two criteria for alcohol dependence, but none for alcohol abuse, are diagnosed with alcohol use disorder according to DSM-5 criteria.”

To test the potential epidemiological variation, the researchers assessed 327 adults, average age 45 years, who had been diagnosed with a depressive or anxiety disorder and were admitted to an outpatient clinic during 2015. Assessment relied on the Mini-International Neuropsychiatric Interview (MINI) — alcohol module along with an item developed from the Composite International Diagnostic Interview (CIDI) that evaluated a person’s “strong desire and urge to drink alcohol.”

Meeting the criteria for alcohol abuse or alcohol dependence in a 12-month period was used to indicate alcohol use disorder based on the DSM-IV, and meeting at least 2 of the 11 criteria qualified for alcohol use disorder using the DSM-5. The researchers also conducted subgroup analyses and adjusted for age, gender, diagnosis, psychological distress score, and smoking status.

Despite hypothesizing that the DSM-5 criteria would increase the rates of alcohol use disorder compared to using criteria from the DSM-IV, the researchers found instead that prevalence rates of alcohol use disorder were identical in each edition. With both, 11.3% of the overall sample and 15.3% of alcohol users (37 of 242) met the criteria for alcohol use disorder using either DSM edition.

Only slight differences occurred among subgroups: 1.1% of patients with anxiety disorders were diagnosed using the DSM-IV but not the DSM-5, and an additional 1.8% of tobacco smokers qualified for the disorder under the DSM-5. Further, 89.2% of patients with DSM-IV alcohol use disorder also met the criteria for the disorder under the DSM-5, and only 0.4% diagnosed using the DSM-5 did not meet the DSM-IV criteria. Excellent overall agreement existed between the 2 sets of criteria, the investigators reported.

“There is a large diagnostic stability between new and old alcohol use disorder criteria, at least in the specific clinical population we assessed, suggesting it is unlikely that DSM-5 diagnostic criteria may inflate the size of alcohol use disorder cases,” they concluded.

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Di Giacomo E, Zappa L, Madeddu F, Colmegna F,  Clerici M. Agreement between DSM-IV and DSM-5 criteria for alcohol use disorder among outpatients suffering from depressive and anxiety disorders. Amer J Addict. 2017;26:53-56.