The addiction consultation service for hospitalized patients with substance use disorder: An integrative review of the evidence.

Introduction: The Addiction Consultation Service has emerged as a model of care for hospitalized patients with substance use disorder. The aim of this integrative review is to characterize the Addiction Consultation Service in general hospital settings, assess its impact on clinical outcomes, identify knowledge gaps, and offer guidance for implementation.

Methods: We conducted an integrative review of studies from January 2002 to August 2023, applying specific inclusion criteria to collect study design, service characteristics, staffing models, utilization, and health outcomes.