Heroin, cocaine, and methamphetamine are considered “major” illicit drugs that are often associated with severe consequences, including mortality, morbidity, and criminality. Clinical/service policy and practice need to recognize and adapt to the specific patterns and needs of users of different drugs while being mindful of the stage drug users are at in their life course. Users in the High Use group also had earlier onsets of drug use and crime, longer incarceration durations, and were the least employed.
Heroin users were disproportionately overrepresented in the Consistently High Use group and underrepresented in the Low Use group cocaine and meth users were mostly in the Moderate Use group. Application of growth mixture models revealed five distinctive groups: Consistently High Use (n = 545), Increasing Use (n = 260), Decreasing Use (n = 254), Moderate Use (n = 638), and Low Use (n = 100). Drug use trajectories over the 10 years since initiation demonstrated the persistence of use over time for all three drugs, with heroin use at the highest level (13 to 18 days per month), cocaine at the lowest level (8 to 11 days), and meth in between (approximately 12 days per month). The analyses used data from five studies that collected longitudinal information using the Natural History Instrument, including 629 primary heroin users, 694 cocaine users, and 474 meth users.
The current study examined long-term trajectories of drug use for primary heroin, cocaine (crack/powder cocaine), and methamphetamine (meth) users. Current literature has shown that heroin addiction is characterized by long periods of regular use persisting over the life course, whereas the course of stimulant use is less understood.
0 kommentar(er)
