Table 2.

Unstandardized partial regression coefficients (b), Standard Errors (SE), and 95% Confidence Intervals (95% CI) for total monetary benefits for the 12-month follow-up period (N=200)

Variable	b	SE	95% CI (Lower, Upper)
Total Benefit for 12 months prior to baseline (composite variable)	$0.24	$0.06	($0.13, $0.36)
Condition (IM vs. SM/RM)	$2,1551	$1,422	(−$582, $5015)

Notes: Total monetary benefit for 12 months prior to baseline is a composite variable calculated from the legal income earned during the 12-month period minus the sum of pre-treatment costs of emergency room visits for psychiatric or physical problems, days hospitalized for psychiatric or physical problems, days of residential drug treatment, days incarcerated, and number of times arrested.

¹The b associated with treatment condition is the IM mean minus the SM/RM mean, adjusted for total monetary costs for 12 months prior to baseline. The 95% confidence intervals were bootstrapped using the percentile method in 10,000 replications.

Two additional analyses were conducted that similarly showed no significant differences between treatment conditions (both ps>.05). The first examined the difference in total monetary benefits between treatment conditions at follow-up controlling for the pre-treatment benefits and costs as separate predictor variables, rather than as part of a composite (b=$1,782; 95% CI: −$1,036, $4,422; p>.05). The second analysis examined the difference in total monetary benefits between treatment conditions controlling for only the three variables on which the conditions differed at baseline (legal income earned, days in residential treatment, and days incarcerated during the 12-month period prior to baseline; b=$2,072, 95% CI: −$791, $4,883; p>.05).