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. Author manuscript; available in PMC: 2023 Sep 27.
Published in final edited form as: J Community Psychol. 2023 Apr 10;51(7):2861–2886. doi: 10.1002/jcop.23047

TABLE 8.

Parameter estimates and incidence rate ratios of GLMM evaluating effects of time, condition, and time-by-condition interaction on sexual violence perpetration (overall).

Incidence rate ratios (IRRs)

Variable Estimate SE P Low IRR High
Intercept −7.37 1.48 <0.001 _ _ _
Covariates
 % free or reduced-price lunch 0.04 0.02 0.118 0.99 1.04 1.09
 % minority students 0.01 0.02 0.550 0.98 1.01 1.04
 School Type (ref: Public)
 Charter −1.95 1.58 0.219 0.01 0.14 3.18
 Private 0.31 1.23 0.803 0.12 1.36 15.31
 # of students 0.00 0.00 0.299 1.00 1.00 1.00
Focal predictors
 Time (ref: Baseline)
 2 Months 3.33 0.68 <0.001 7.37 27.91 105.74
 6 Months 2.13 0.63 <0.001 2.43 8.39 29.01
 Condition (ref: Control) 0.27 0.83 0.748 0.26 1.30 6.60
Interactions
 2 Months × Condition −1.38 0.91 0.130 0.04 0.25 1.50
 6 Months × Condition 0.22 0.86 0.801 0.23 1.24 6.64
Simple slopes (Condition)
 Condition @ 2 Months −1.12 0.87 0.198 0.06 0.33 1.80
 Condition @ 6 Months 0.48 0.84 0.565 0.31 1.62 8.35
Simple slopes (Time)
 2 Months @ Intervention 1.94 0.61 0.001 2.13 6.99 22.89
 6 Months @ Intervention 2.34 0.59 <0.001 3.29 10.41 32.97

Abbreviation: GLMM, generalized linear mixed model.