Table 6.

Regression coefficients testing IBI as a predictor of depression and anxiety symptom severity

Effect	β	SE	t	p	R 2
Coefficients: Depression Symptom Severity Model
Intercept	17.76	35.52	0.50	0.619	0.48
IBI	−7.96	18.49	−0.42	0.669
Groupa	−31.06	43.19	−0.72	0.476
Group × IBI	16.30	22.39	0.73	0.470
Age	−0.02	0.01	−2.11	0.040*
Medication use	0.04	0.09	0.40	0.691
Parenting stress	0.01	<0.01	3.46	0.001*
Coefficients: Anxiety Symptom Severity Model
Intercept	15.92	22.38	0.71	0.481	0.43
IBI	−7.33	11.65	−0.63	0.532
Groupa	−34.14	27.09	−1.26	0.214
Group × IBI	17.77	14.04	1.27	0.212
Age	−0.01	0.01	−2.13	0.039*
Medication use	0.04	0.06	0.61	0.542
Parenting stress	0.01	<0.01	3.10	0.003*

^aThe control group was set as the reference category

*p < 0.05