TABLE 2—
Drug Use vs Non–Drug Use, Slope |
Drug-Use Frequency, Slope |
Model Fit Indices |
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Variable | Est. (95% CI) | SE | Est. (95% CI) | SE | Log-Likelihood (df) | AIC/BIC |
Drug use | –0.836.25 (18) | 1708.50/1991.39 | ||||
Intercept | 0.06 (–0.36, 0.49) | 0.22 | 0.31 (0.16, 0.45) | 0.13 | ||
Condition (FU vs PAU) | –0.12 (–0.28, 0.51) | 0.20 | –0.20 (–0.29, –0.10) | 0.04 | ||
Mean trajectory | ||||||
Sex without a condom | –726.718 (11) | 1475.44/1506.97 | ||||
Intercept | 0.05 (–0.27, 0.84) | 0.05 | ||||
Condition (FU vs PAU) | 0.09 (0.02, 0.16) | 0.03 |
Note. AIC = Akaike information criterion; BIC = Bayesian information criterion; CI = confidence interval; Est. = estimation; FU = Familias Unidas; PAU = prevention as usual. Unstandardized coefficients are presented in the table. The zero-inflated growth model was used for drug use whereas the conventional growth curve model was used for sex without a condom. Seven cases were not included in the drug-use analyses because of an invalid response pattern.