BACKGROUND: The use of non-medical opioids has reached 60 million in 2021. Methadone-assisted treatment (MAT) is a widely used harm-reduction strategy for opioid addiction. However, methadone can cause cognitive impairment, which can impede treatment.
METHODS: This cross-sectional study was conducted between July 1st and July 31, 2023. A total of 114 participants, comprising 76 MAT patients and 38 healthy subjects (controls), were recruited. Sociodemographic questionnaire, DSM-5 and neuropsychiatric cognitive (NUCOG) assessments were used. A general linear model was used to examine cognitive function between the MMT and control groups while controlling for all possible confounders.
RESULTS: The MAT group performed significantly lower on the NUCOG total score (p
* Title and MeSH Headings from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.