There is no age limit for methadone: a retrospective cohort study

Area of Science:

• Geriatric Medicine
• Addiction Psychiatry
• Public Health Policy

Background:

• US data indicates an aging methadone-maintained population, with a rise in patients aged 50 and older.
• European data on aging methadone populations is limited.
• This study addresses the gap by examining age trends in Basel-City, Switzerland.

Purpose of the Study:

• To evaluate age trends in the methadone population in Basel-City, Switzerland.
• To assess related developments in this demographic.
• To compare findings with US methadone population trends.

Main Methods:

• Retrospective cohort study of methadone patients from April 1, 1995, to March 31, 2003.
• Data sourced from the anonymized methadone register of Basel-City.
• Patients categorized into age groups (20-29 years to 50+ years); cross-sectional comparisons using 1996 and 2003 data.

Main Results:

• Significant increase in older patients (50+) between 1996 and 2003 (p < 0.001).
• Proportion of patients aged 50+ rose nearly tenfold; proportion under 30 dropped from 52.8% to 12.3%.
• Significant increases in average methadone dose (p < 0.001) and 1-year retention rate (p < 0.001).

Conclusions:

• Clear aging trend observed in Basel-City's methadone patients, comparable to US trends.
• Unanswered questions remain regarding medical, psychosocial, and health economic consequences for older patients.
• Emphasizes the need for age-appropriate treatment and care solutions for all methadone patients.