Severity of opiate dependence in an Australian sample: further validation of the SODQ

The Severity of Opiate Dependence Questionnaire (SODQ) was administered to 114 subjects attending an Australian drug dependency treatment centre. The psychometric properties of the SODQ were examined and compared with previous findings reported on American and British samples of opiate addicts. Severity of opiate dependence was assessed independently using a structured clinical interview based on DSM-III-R criteria (i.e. SCID-R). Together those analyses suggested (i) measurement difficulties with some aspects of the opiate dependence syndrome and (ii) only a modest relationship between subjects' self-report and clinicians' judgements of severity of opiate dependence.