Number of Treatment Sessions
Across sites, patients in family-focused treatment attended a mean of 15.4 (SD=7.3) of 21 expected protocol therapy sessions and a mean of 2.0 (SD=5.5) extra (nonprotocol) sessions. In enhanced care, patients attended a mean of 2.5 (SD=1.1) of three expected protocol sessions and 0.8 (SD=2.3) nonprotocol sessions. The number of nonprotocol sessions did not differ across treatment conditions or sites. Inclusion of a therapy contact ratio (number of psychosocial contacts to number of expected sessions in each treatment) in the survival models did not alter the null effects of treatment condition on time to recovery or recurrence.