Examining attrition rates at one specialty addiction treatment provider in the United States: a case study using a retrospective chart review

Table 5 Randomized clinical trials testing same-day access protocols

Authors & date	Sample size	Same day (0 & 1) show rate	Days 2 – 7	Odds ratio of showing on days 0 or 1
Stark et al. 1990[42]	38 exp, 22 tau	55% (21)	41% (9)	1.78
Festinger et al. 1996[43]	39 exp, 39 tau	59% (23)	33% (13)	2.88
Festinger et al., 2002[44]	58 exp, 58 tau	64% (37)	40% (23)	2.68
Stasiewicz & Stalker, 1999[45]	32 exp, 96 tau	72% (23)	51% (49)	2.45
Maddox & Desmond 1995*[46]	93 exp, 93 tau	96% (89)	74% (69)	7.74
Average		69%	48%	2.56

Exp = Subjects assigned to same-day or within 24 hours, tau = Treatment as usual_subjects assigned to appointments beyond 24 hours, *= methadone maintenance program-14 days for tau.

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