Personality, treatment, and prescriber all influence retention for opioid rehab

Personality, treatment, and prescriber all influence retention for opioid rehab

opioid treatment

A new report from researchers at The National Drug and Alcohol Research Center (NDARC), UNSW Sydney, has found that a person’s characteristics, their treatment, and the prescriber all have significant influence on retention rates for opioid agonist treatment (OAT).

The observational retrospective study published online in Addiction estimated retention in OAT, specifically methadone and buprenorphine, and its relationship with person, treatment, and prescriber characteristics in a cohort of 22,577 people entering OAT for the first time in New South Wales, Australia, between 1st August 2001 and 31st December 2015.

Lead author, Ms Chrianna Bharat, a Ph.D. candidate at NDARC, said, “Methadone compared to buprenorphine was associated with improved retention, but this effect varied by the date of first treatment.”

The study found new evidence in factors impacting retention in OAT.

“Being an Aboriginal or Torres Strait Islander person, younger, having a past-year psychotic diagnosis, or having four or more criminal offenses in the year prior to treatment were all associated with an increased risk of leaving treatment,” said Ms Bharat.

The study found that most people in the cohort were male (69 percent) and non-Indigenous (77 percent), with a median age of 29 years.

“At first OAT entry, the percent of people initiating on methadone reduced over time (74.2 percent in 2001 to 38.3 percent in 2015),” said Ms Bharat.

The report also found that people whose prescriber had a longer tenure of OAT prescribing were at a reduced risk of leaving treatment compared to those whose prescribers had less experience.

“An example of this would be a prescriber with three years of OAT prescribing tenure, an increase of five years prescribing experience was associated with a 6 percent reduction in odds of the person leaving treatment,” said Ms Bharat.

“In terms of where a prescriber worked, there was no association found between a person’s time in OAT and either a prescriber’s peer group size or whether they were prescribing from multiple locations.”

Ms Bharat highlighted the need to recognize and address barriers to treatment retention at each of the person, prescriber, and system levels.

“Examining explanations for the improvement in buprenorphine retention over time could help to inform the processes needed to optimize retention, while greater education and mentorship programs could be considered as possible strategies to support prescribers in improving retention of OAT for people prescribed buprenorphine and methadone,” said Ms Bharat.

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