Table 1. Descriptive Statistics of TV-watching Indexes in the Intervention and Control Groups before and after the Intervention .

Index	Pre-test		Post-test		p
	Mean	SD	Mean	SD
Number of hours of watching TV by children during the day	6.85	2.16	4.35	2.23	p˂0.001
Number of hours TV is on at home during the day	8.42	4.25	6.22	3.73
Number of hours of studying at home during the day	2.72	1.05	4.80	1.56
Number of hours of reading (non-academic) books during the day	0.23	0.04	0.85	0.07