Cohort Studyhigh evidence
Effect of the COVID-19 pandemic on initiations of opioid agonist therapy in Ontario: A population-based interrupted time series analysis.
The International journal on drug policy·July 1, 2026·PMID 42030790
Why it mattersUnderstanding pandemic-related changes in OAT initiation helps pain and addiction specialists anticipate shifts in treatment demand and prescribing patterns during public health emergencies, supporting the need for adaptable, low-barrier treatment models.

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