Abstract
Substance abuse, anxiety and depression after 10 years: A prospective study of drug users in and outside OMT treatment
Aims
The national Opiate Maintenance Treatment (OMT) program in Norway started officially in 1998. The same year a treatment study was initiated, including the most used treatment measures for drug users in Norway. The main aim in the present study was to investigate the prevalence of live OMT patients in the total sample after 10 years, and to compare the outcome of primarily substance abuse, anxiety and depression among OMT patients versus non-OMT patients.
Design & Methods
Four hundred and seven patients, in Oslo and the nearby regions, who started in 16 different in- and outpatients programs, were followed from intake to treatment and during ten years (1998-2009). Patients in the sample were interviewed after one, two, seven and ten years, and they were divided into three different treatment groups: inpatient residency for grown-ups, outpatient psychiatric youth teams and youths living in collectives. Data was collected through use of EuropASI and HSCL-25 at all follow-ups.
Results
After ten years 15 % were deceased. Of the 333 persons left, 73 % (n=248) were interviewed after ten years. Forty percent (n=99) were then in OMT. After ten years there were no gender differences regarding attendance to OMT, but the OMT-group was older (30 vs .28 yrs, p<0.05), and they used more benzodiazepines (p<0.000) and cannabis (p<0.01) than the others. The OMT-group reported to a larger extent more anxiety and depression throughout the total observation period than the non OMT participants. Use of heroin and criminality were significantly reduced in both groups.
Conclusions
In spite of reduced use of heroin, the OMT patients seemed to have more difficulties in reducing the use of benzodiazepines and cannabis, whereas the anxiety and depression scores were high and stable through the total observation time.