Effects of remote support courses on parental mental health and child development in autism: A randomized controlled trial

Table 4 Comparisons of scores on the generalized anxiety disorder-7 and patient health questionnaire-9 between two groups before and after the interventions, mean ± SD

Variable	Experimental group (n = 71)	Control group (n = 69)	t	P value
GAD-7
Pre-intervention	5.85 ± 4.67	4.91 ± 4.63	-1.186	0.238
Post-intervention	2.89 ± 3.19	3.67 ± 3.92	0.124	0.199
t/P value	7.323/< 0.001b	3.599/0.001b
PHQ-9
Pre-intervention	5.48 ± 4.86	5.04 ± 4.77	-0.535	0.594
Post-intervention	2.77 ± 3.00	3.48 ± 4.27	0.090	0.260
t/P value	6.590/< 0.001b	4.725/< 0.001b

^bP < 0.01.

GAD-7: Generalized anxiety disorder-7; PHQ-9: Patient health questionnaire-9.