Marijuana and other illicit drug use and the risk of injury: A case-control study.

OBJECTIVES:

Assess the associations between marijuana or other illicit drug use and injury risk.

METHODS:

Case-control study. Cases were emergency department patients with acute injury. Age-sex matched controls were interviewed by telephone.

RESULTS:

Marijuana use in the past seven days was associated with decreased risk, and use of other illicit drugs was associated with increased risk. Controlling for confounding had little effect.

CONCLUSIONS:

Marijuana use may be associated with a decreased risk of injury. Other illicit drug use was associated with increased risk.