As predicted, prevalence rates of opioid dependence were high in our samples: 16% and 42% in the total and inter-rater samples, respectively. Thai versions of the MINI (κ=1.00; Table 2) and SSADDA (κ=0.97; Table 3) showed excellent inter-rater reliability for the categorical DSM-IV diagnosis of OD. Similarly, there was excellent agreement for individual OD criteria (κ=0.79–0.97) (Table 3). Finally, diagnostic assessments of OD between instruments (i.e., Thai SSADDA vs. Thai MINI) were highly concordant (κ=0.97)(Table 4).
