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. Author manuscript; available in PMC: 2015 Jul 1.
Published in final edited form as: J Addict Dis. 2014;33(3):253–265. doi: 10.1080/10550887.2014.950029

Table 3.

Secondary Outcomes by treatment group and gender and estimates of the adjusted longitudinal effect

Time of Assessment
Unadjusted Means
Secondary Outcome Measure Baseline
Mean (SE)
2 Months
Mean (SE)
4 Months
Mean (SE)
6 Months
Mean (SE)
Adjusted
Effect& (SE)
Anxiety Status
Standard MI (MI1) Overall .55 (.05) .63 (.05) .57 (.05) .48 (.05) .06 (.28)
Men .51 (.07) .60 (.07) .51 (.07) .44 (.07) −.01 (.39)
Women .58 (.07) .65 (.07) .62 (.07) .53 (.07) .12 (.41)
Intensive MI (MI9) Overall .58 (.05) .67 (.05) .59 (.05) .55 (.05) .13 (.27)
Men .54 (.07) .59 (.07) .56 (.07) .54 (.07) .08 (.37)
Women .61 (.07) .75 (.07) .62 (.07) .57 (.07) .20 (.40)
Depression Status
Standard MI (MI1) Overall .55 (.05) .37* (.05) .35 (.05) .36 (.05) −.16 (.30)
Men .38 (.07) .27* (.07) .30 (.07) .23 (.06) −.95 (.46)
Women .38** (.07) .47 (.07) .40 (.07) .49 (.07) .45 (.40)a
Intensive MI (MI9) Overall .58 (.05) .51 (.05) .43 (.05) .43 (.05) −.67††(.28)
Men .51 (.07) .50 (.07) .36 (.07) .33 (.07) −.72# (.39)
Women .63 (.07) .53 (.07) .50 (.07) .53 (.07) −.64 (.40)
# Days Had Psych Problems
Standard MI (MI1) Overall 11.40** (1.11) 11.76 (1.17) 11.36 (1.14) 11.88 (1.27) .26 (1.30)b
Men 8.55* (1.48) 9.71 (1.54) 10.02 (1.67) 10.98 (1.87) 1.63 (1.80)b
Women 14.25* (1.57) 13.81 (1.73) 12.62 (1.56) 12.76 (1.74) −1.13 (1.88)
Intensive MI (MI9) Overall 15.70 (1.08) 12.50 (1.18) 12.72 (1.22) 10.80 (1.08) −3.67†† (1.27)
Men 12.93 (1.47) 10.46 (1.63) 9.60 (1.51) 7.98 (1.29) −3.59 (1.73)
Women 18.63 (1.50) 14.67 (1.67) 16.04 (1.84) 13.74 (1.67) −3.77 (1.87)
&

Adjusted treatment effect was estimated as the average outcome difference between the separate 2, 4, and 6 month follow-ups and baseline controlling for gender (in overall models), age, number of outpatient sessions attended, number of MI sessions, and time-varying ASI psychiatric severity (except for analyses of ASI psych as the outcome).

*, **, ***

Indicates a significant difference, either overall or within gender, between treatment conditions for a specific interview at the .10, .05, .01, .001 level

#, †, ††, †††

Indicates a significant adjusted within-treatment effect averaged over time at the .10, .05, .01, .001 level

a, b

Indicates a significant difference between adjusted treatment effects across treatment at the .10, .05 level