The average number of lifetime substance dependence diagnoses excluding opioids was two (SD 1.3). Lifetime prevalence ranged from 31.9% for cocaine dependence to 55.5% for cannabis dependence. Depression was the highest lifetime prevalence mental disorder at 60.7% (Table 1). The opioid abuse and dependence criteria were highly endorsed, with the lowest endorsement being 73% for legal problems, and the highest 97% for withdrawal.
