Table 2 Retention rates for clients enrolled in treatment
Authors & date | # of sites | Treatment model | Sample size | Outcome | Retained | Withdrew early |
|---|---|---|---|---|---|---|
Kleinman et al., 1992 ![20] | 1 | Outpatient | 86 | Retained past 5 sessions | 42% | 58% |
Ershoff et al., 1996[22] | 8 | Outpatient | 1587 | In tx past 30Â days | 63% | 37% |
Arfken et al., 2001[28] | multiple | Residential & outpatient | 2026 | In tx past 30Â days | 87% | 13% |
Claus & Kindleberger, 2002[30] | 1 | Residential & outpatient | 195 | Retained past 2 sessions | 80% | 20% |
Brown et al., 2008 pre NIATx year[36] | 1 | Residential | 279 | Retained past 3 sessions | 63% | 37% |
Brown et al., 2008 post NIATx year[36] | 1 | Residential | 674 | Retained past 3 sessions | 70% | 30% |
Curran et al., 2007[4] | > 10 | Outpatient | 9,933 | Retained past 5 sessions | 73% | 27% |
Ghee et al., 2009[37] | 1 | Outpatient | 104 | In tx past 30Â days | 46% | 54% |
Adams et al., 2011[38] | 1 | Residential | 105 | In tx past 30Â days | 77% | 23% |
Pinto et al., 2011[33] | 6 | Outpatient | 346 | Retained past 5 sessions | 83% | 17% |
McHugh et al., 2013[39] | 1 | Methadone Maintenance | 78 | Retained past 11 sessions | 77% | 23% |
Choi et al., 2013[40] | 3 | Residential | 1,317 | In tx past 30Â days | 44% | 56% |
Garnick et al., 2014[13] | 783 | Residential & Outpatient | 106,662 | Retained past 3 sessions | 74% | 26% |
Carroll, 1997 (literature review)[3] | 24 studies | Outpatient | >4,000 | Â | 56% | 44% |
30-day retention weighted average without Garnick[13] | 71% | 29% | ||||
30-day retention un-weighted average | 68% | 32% | ||||