Abstract
BackgroundIn Belgium, the incidence of treatment episodes for substance use problems is monitored by the Network of Sentinel General Practices (SGP) and by the Treatment Demand Indicator (TDI) surveillance at higher, specialist care levels. Using both data sources, we examine 1) how patients starting specialist treatment for substance use problems on referral by their GP compare to those that were referred by non-GP caregivers; 2) how patients starting GP treatment for substance use problems without receiving specialist treatment concurrently compare to those who do.MethodsThe same European protocol with common variables was used by both surveillances. Data from 2016 and 2017 were examined using 95% confidence intervals and multivariate regression.ResultsAccording to TDI-data (n=16,543), determinants of being referred by a GP (versus by a non-GP caregiver) for specialist treatment were age ≥ median (OR 1.25; 95% CI 1.13-1.38), education ≥ secondary level (OR 1.27; 95% CI 1.15-1.41), recent employment (OR 1.71; 1.56-1.88), stable housing (3.62; 95% CI 3.08-4.26), first treatment episode (OR 1.72; 95% CI 1.57-1.87), recent daily primary substance use (OR 1.46; 95% CI 1.33-1.59) and mono substance use (OR 1.23; 95% CI 1.04-1.48). Type of substance use was a significant determinant with higher odds of using pharmaceuticals (and alcohol) (OR 1.24; 95% CI 1.04-1.48), and lower odds of using cannabis only/primarily (OR 0.73; 95% CI 0.62-0.86), with reference to street drugs minus cannabis only/primarily. According to SGP data (n=314), determinants of starting GP treatment without concurrent specialist treatment were recent employment (OR 2.58; 95% CI 1.36-4.91), first treatment episode (OR 2.78; 95% CI 1.39-5.55) and living in the Brussels or Walloon region (OR 1.97; 95% CI 1.06-3.66).ConclusionsThis study adds knowledge about the general practice population treated for substance use problems and the consistency of data from the surveillances. Both studies show a relatively favourable profile of general practice patients with substance use problems.