The median length of stay was 2.7 months for those attending day/residential services ( n = 42 ) and 4.0 sessions for those attending outpatient services ( n = 37 ) 16.7 % of participants from day/residential services dropped out of treatment early ( within the first month ) and 32.4 % of participants from outpatient treatment services dropped out of treatment early ( before the third session ) .
