Abstract
BackgroundThis study investigates test-retest and inter-item consistency of Alcohol Drog Diagnos InStrument (ADDIS), a structured interview to diagnose substance use disorders according to ICD-10, DSM-IV and DSM-5. ADDIS, the Swedish version of SUDDS, is the only instrument in Swedish that produces diagnostic proposals specific to all drug categories, and for all three diagnostic systems. Screening of stressful life events, anxiety, and depression is also included.MethodsThirty patients at addiction treatment facilities were interviewed for diagnostic assessment and re-interviewed after one week.ResultsADDIS has excellent internal consistency. There is also very high test-retest correlation on number of fulfilled criteria for all diagnostic systems. Agreement of diagnostic proposals is substantial, mean absolute agreement is excellent, and mean systematic correlation is almost perfect.ConclusionADDIS is a reliable tool for specific diagnostic assessment of SUDs.
Highlights
This study investigates test-retest and inter-item consistency of Alcohol Drog Diagnos InStrument (ADDIS), a structured interview to diagnose substance use disorders according to ICD-10, DSM-IV and DSM-5
Internationally, they may be diagnosed according to DSM-IV [2] or the new DSM-5 [3]
As of today (2015), there are three instruments for diagnostic assessment of substance use disorders (SUDs) with manuals translated into Swedish: SCID-I (Structured Clinical Interview for the DSM-IV [axis I disorders]) [4], MINI (The Mini-International Neuropsychiatric Interview) [5,6] and ADDIS [7]
Summary
Thirty patients at addiction treatment facilities were interviewed for diagnostic assessment and re-interviewed after one week. The study was done as a quality assurance study in cooperation with alcohol and drug treatment facilities, where patients agreed to participate in a test-retest investigation of ADDIS. Trained interviewers among the treatment staff carried out the interviews. The two interview protocols, attached to each other, were sent to the researchers (i.e. the authors) without names or personal ID:s of the interviewed patients. Patients were totally anonymous to the researchers, and only known to the treatment staff. This procedure was reviewed in the Research Ethics Committee of Mid Sweden University without objections
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