Retention efforts are critical to maintain relationships with research participants over time.
This is especially important for the Adolescent Brain Cognitive Development (ABCD) study …

Importance Heroin use is an urgent concern in the United States. Little is know about the
course of heroin use, heroin use disorder, and associated factors. Objective To examine …

Objective The purpose of this study was to determine the mortality risks, over 20 years of
follow-up in a nationally representative sample, associated with illegal drug use and to …

Objective: Despite research demonstrating increased need for healthcare services among
people who use drugs, few studies have investigated barriers to general healthcare in this …

Background Emerging data points to a potential heroin use epidemic in South Africa.
Despite this, access to methadone maintenance therapy and other evidence-based …

Aim To test the effects of drug court participation on long-term mortality risk. Methods During
1997–98, 235 individuals charged with a non-violent offense were randomly assigned to …

Background. When 12-to-21-year-olds start using prescription pain relievers extra-medically,
some of them transition into opioid dependence within 12 months after such use. Our main …

Purpose Nationwide data have been lacking on drug abuse (DA)-associated mortality. We
do not know the degree to which this excess mortality results from the characteristics of drug …

Background Heroin use carries the highest burden of disease of any drug of dependence.
The study aimed to determine mortality rates of the Australian Treatment Outcome Study …

Background There is a lack of research examining what prevents people who smoke heroin
from transitioning to regular injection. This qualitative study aims to improve understanding …