Early childhood has long been known to be a formative time in a child's development-- a time when the brain produces more than 1 million neural connections every second during the first few years of a child's life. However, there are factors at the individual and community levels that impact the development process. In communities across America,…

Examination of childhood risk factors for injection drug use may provide clues as to why people progress to injection drug use and it can promote identification of at-risk youth. We surveyed current injection drug users (IDUs) and individuals who never injected drugs (non-IDUs), recruited through street outreach and snowball sampling in Denver,…