Estimating the prevalence of crack dependence using capture-recapture with institutional and field data: a three-city study in The Netherlands.
The aim of this study was to estimate the prevalence of crack dependence in the three largest Dutch cities (Amsterdam, Rotterdam, The Hague), stratified by gender and age. Three-sample capture-recapture, using data (collected between 2009 and 2011) from low threshold substitution treatment (n = 1,764), user rooms (n = 546), and a respondent-driven sample (n = 549), and applying log-linear modeling (covariates: gender, age, and city), provided a prevalence rate of 0.51% (95% CI: 0.46%-0.60%) for the population aged 15-64 years, with similar estimates for the three cities. Females (23.0% of total estimate) and younger crack users (12.8% aged <35 years) might be underrepresented in drug user treatment services.
Bonger Institute of Criminology, University of Amsterdam, Amsterdam, The Netherlands. a.oteoperez@uva.nl
Alberto Oteo
AO
Pérez
Maarten J L F
MJ
Cruyff
Annemieke
A
Benschop
Dirk J
DJ
Korf
D000328:Adult; D000367:Age Factors; D002947:Cities / Q000453:epidemiology; D019970:Cocaine-Related Disorders / Q000453:epidemiology*; D016578:Crack Cocaine; D005260:Female; D006306:Health Surveys; D006801:Humans; D008297:Male; D015233:Models, Statistical; D009426:Netherlands / Q000453:epidemiology; D015995:Prevalence; D012727:Sex Characteristics
D016578:Crack Cocaine