Predictive Value of Regular Cocaine Use Among Opioid-dependent Patients for Long-term Outcome: A 4-year Follow-up Study
Haasen C et al. - The lack of evidence of long-term effects weakens the predictive value of the negative effect of cocaine use on outcome. Methods- A representative sample of 350 opioid-dependent patients in treatment was studied over a 4-year period using the European version of the Addiction Severity Index.
- The sample was split into 2 groups according to cocaine use at baseline: 1 group with regular cocaine use and 1 group with irregular or no cocaine use.
Results- The group of regular cocaine using opioid-dependent patients had a significantly higher severity of dependence and a higher need for treatment at baseline compared to those with irregular or no cocaine use.
- At the 4-year follow-up examination no differences were found between the 2 groups.
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