Volume 52 | Number 5 | October 2017

Abstract List

Jemima A. Frimpong Ph.D., M.P.H., Karen Shiu‐Yee M.P.H., Thomas D'Aunno Ph.D.


To describe changes in characteristics of directors of outpatient opioid agonist treatment () programs, and to examine the association between directors’ characteristics and low methadone dosage.

Data Source

Repeated cross‐sectional surveys of programs in the United States from 1995 to 2011.

Study Design

We used generalized linear regression models to examine associations between directors’ characteristics and methadone dose, adjusting for program and patient factors.

Data Collection

Data were collected through telephone surveys of program directors.

Principal Findings

The proportion of programs with an African American director declined over time, from 29 percent in 1995 to 16 percent in 2011. The median percentage of patients in each program receiving <60 mg/day declined significantly, from 48.5 percent in 1995 to 29 percent in 2005 and 23 percent in 2011. Programs with an African American director were significantly more likely to provide low methadone doses than other programs. This association was even stronger in programs with an African American director who served populations with higher percentages of African American patients.


Demographic characteristics of program directors (e.g., their race) may play a key role in explaining variations in methadone dosage across programs and patients. Further research should investigate the causal pathways through which directors’ characteristics affect treatment practices. This may lead to new, multifaceted managerial interventions to improve patient outcomes.