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Table 1 Study characteristics

From: Short scales to assess cannabis-related problems: a review of psychometric properties

Author (year) Country Scale Assessment Mode Subjects Sampling (response rate)
General population samples
Steiner et al. (2008) Germany SDS Dependence Questionnaire and telephone interview 456 adult cannabis users from population survey Probabilistic population sample (45%, total sample)
Martin et al. (2006) Australia SDS Dependence Interview 100 adolescent cannabis users Convenience sample
Kedzior et al. (2006) Australia SDS Dependence Interview 69 adult study participants (healthy and schizophrenia patients) Convenience sample
Kedzior et al. (2007) Australia SDS Dependence Questionnaire 50 adult study participants (cannabis users) Convenience sample
Okulicz-Kozaryn (2007) Poland PUM Dependence Questionnaire and interview 1277 adolescent cannabis users Snowball sample
Legleye et al. (2007) France CAST Social and health problems Questionnaire 123 cannabis users from school survey Non-probabilistic school sample (85%, total sample)
Annaheim et al. (2008) Switzerland CUDIT Chronic, acute and social problems, Motivation Telephone interview 593 adolescent cannabis users from population survey Probabilistic population sample (61.6%, total sample)
Specific user samples
Swift, Hall et al. (1998) Australia SDS Dependence Interview 143 long-term cannabis users Snowball sample
Swift, Copeland & Hall (1998) Australia SDS Dependence Questionnaire and interview 200 long-term cannabis users Convenience sample
Hides et al. (2007) Australia SDS Dependence Interview 153 in-patients with schizophrenia Convenience sample
Ferri et al. (2000) Brazil SDS Dependence Interviewer-administered questionnaire 347 regular users of cocaine Convenience sample
Adamson & Sellman (2003) New Zealand CUDIT Dependence Questionnaire and interview 53 out-patients with alcohol dependence (cannabis users) Convenience sample