• In Western Australia (WA) in 2003-04, 34 government-funded alcohol and other drug treatment agencies provided 14,256 'closed treatment episodes'.
  • Just under one-third of closed treatment episodes were for clients aged between 20 and 29 years of age (32%), followed by a quarter of all treatment episodes (25%) provided for clients in the 30-39 year age group.
  • Male clients accounted for nearly two-thirds (64%) of all closed treatment episodes in WA.
  • In WA, alcohol (33%) and amphetamines (26%) were the most common principal drugs of concern in closed treatment episodes, followed by cannabis (22%).
  • Of all closed treatment episodes in WA, counselling was the most common form of main treatment provided (50%), followed by rehabilitation (16%) and assessment only (10%).
  • Treatment episodes in WA most commonly ceased because the treatment was completed (45%).