Video-based e-learning program for schoolteachers to support children of parents with mental illness: a cluster randomized trial

Table 3 Main outcomes at endpoint(T3)

		Endpoint (T3)		Effect size	Difference (I-C)			Difference (I-C)
						t-test			mixed model
Sense of Coping Difficulty subscale		Mean	SD	Cohen's d	Mean	95%CI	p^*	LSmean	95%CI	p^**
Full analysis set (FAS)	Intervention (n = 86)	11.6	2.2	-0.90	-1.65	[-2.81, -0.49]	0.007	-1.38	[-2.09, -0.67]	< .001
Full analysis set (FAS)	Control (n = 82)	13.3	2.9
Per-protocol analysis set (PPS)	Intervention (n = 73)	11.6	2.2	-0.86	-1.61	[-2.78, -0.43]	0.009	-1.44	[-2.19, -0.69]	< .001
Per-protocol analysis set (PPS)	Control (n = 73)	13.4	3.0

I-C Intervention and control groups
^*t-test on the cluster-specific means
^** Multilevel analysis using a mixed model with baseline scores (T1), years of experience, presence or absence of experience in special needs education, presence or absence of experience in dealing with parents with mental illness, presence or absence of experience in dealing with students with mental illness, presence or absence of experience learning about mental illness, history of mental illness in their immediate family as covariates, group (intervention or control)as fixed effects, and school as random effects

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