Investigating Differences Between Drugs Used in the Australian Night-Time Economy: Demographics, Substance Use, and Harm.

Background: Understanding the characteristics of drug users in the night-time economy (NTE), and whether particular drugs are associated with risky practices and experience of harm, is necessary to inform targeted policy responses in this context.

Objectives: To investigate the correlates of drugs used in the Australian NTE relating to demographics, alcohol use, and experience of harm.

Methods: Patrons were interviewed in the NTE of five Australian cities in 2012-2013 (n = 7,028; 61.