The spectrum of unhealthy drug use and quality of care for hypertension and diabetes: a longitudinal cohort study

Abstract Objectives: Although it is well known that addiction is associated with adverse medical consequences, the effects of the spectrum of unhealthy drug use (illicit drug or prescription misuse) on chronic conditions such as hypertension and diabetes are understudied. This study evaluated the associations between measures of drug use (ie, frequency, severity and type) and standard quality metrics for inadequate blood pressure (BP) and blood glucose (BG) control. Design: Longitudinal cohort study. Participants: Adult primary care patients with unhealthy drug