Background
Opioid agonist treatments (OAT) are widely-used, evidence-based
strategies for treating opioid dependence and reducing HIV transmission. The
positive benefits of OAT are strongly correlated with time spent in
treatment, making retention a key indicator for program quality. This study
assessed patient retention and associated factors in Ukraine, where OAT was
first introduced in 2004.
Methods
Data from clinical records of 2,916 patients enrolled in OAT at
thirteen sites from 2005–2012 were entered into an electronic
monitoring system. Survival analysis methods were used to determine the
probability of retention and its correlates.
Results
Twelve-month retention was 65.8%, improving from
27.7% in 2005, to 70.9% in 2011. In multivariable analyses,
the correlates of retention were receiving medium and high doses of
medication (compared to low doses, dropout aHR=0.57 for both medium
and high doses), having not been tested for HIV and tuberculosis (compared
to being tested, dropout aHR=4.44 and 3.34, respectively), and
among those who were tested – a negative TB test result (compared to
receiving a positive test result, dropout aHR=0.67).
Conclusion
Retention in Ukrainian OAT programs, especially in recent years, is
comparable to other countries. The results confirm the importance of
adequate OAT dosing (≥ 60mg of methadone, ≥8mg of
buprenorphine). Higher dosing, however, will require interventions that
address negative attitudes toward OAT by patients and providers.
Interruption of OAT, in the case developing tuberculosis, should incorporate
continuity of OAT for TB patients through integrated care delivery
systems.