Table 3.

Content classification of adolescents’ screen-based activities.

Device and nature of content			Value, n (%)
All screensa (n=64,856)
	Recreational	45,218 (69.7)
	Educational	10,603 (16.3)
	Social	7450 (11.5)
	Other	1022 (1.6)
	Unclassifiable	563 (0.9)
Television set (n=25,950)
	Recreational	25,788 (99.4)
	Unclassifiable	115 (0.4)
	Social	47 (0.2)
Television set: action gaming (n=14,032)
	Recreational	13,985 (99.7)
	Social	47 (0.3)
Television set: television viewingb (n=11,803)
	Recreational	11,803 (100.0)
Television set: unclassifiable (n=115)
	Unclassifiable	115 (100.0)
Smartphone (n=20,851)
	Recreational	12,369 (59.3)
	Social	7265 (34.9)
	Other	615 (2.9)
	Unclassifiable	374 (1.8)
	Educational	228 (1.1)
Laptop computer (n=15,309)
	Educational	9361 (61.1)
	Recreational	5434 (35.5)
	Other	393 (2.6)
	Social	66 (0.4)
	Unclassifiable	49 (0.4)
Tablet (n=2720)
	Recreational	1627 (59.8)
	Educational	1014 (37.3)
	Social	66 (2.4)
	Other	13 (0.5)
Desktop computer (n=20)
	Unclassifiable	20 (100.0)
Wearable smartwatch (n=1)
	Other	1 (100.0)
Unclassifiable (n=5)
	Unclassifiable	5 (100.0)

^aBased on all screen-based coding interactions (including images with multiple screens).

^bComprises action, action animation, and animation cartoon programs.