Table 2. Prevalences (%) and 95%CI of exposure to screens for longer than 2h a day in adolescents, according to their sociodemographic characteristics and the ones of their schools. ERICA, Brazil, 2013-2014.

Variable	Overexposure to screens (≥ 2 hours)
	%	95%CI
Gender
Female	72.3	70.8-73.7
Male	74.7	73.0-76.4
Age (years)
12-14	73.2	71.6-74.8
15-17	73.8	72.0-75.6
Type of school
Public	72.4	71.1-73.6
Private	78.7	75.6-81.5
School shift
Morning	75.0	73.3-76.6
Afternoon	70.6	68.2-71.9
Geographical region
North	60.2	58.4-61.9
Northeast	69.2	66.6-71.6
Midwest	73.4	71.8-74.9
Southeast	76.5	74.4-78.6
South	77.9	76.5-79.4
Total	73.5	72.3-74.7