Table 3.

Weighted prevalence of high screen time among students from Zhejiang by different characteristics

Characteristics	Prevalence (%)*	Rao-Scott χ2	P values
Age (year)		89.05	<0.0001
≤13	31.0 (27.4–34.7)
14	36.4 (33.6–39.3)
15	43.5 (40.2–46.9)
≥16	49.6 (46.0–53.1)
Sex		18.03	<0.0001
Boys	45.4 (42.8–48.0)
Girls	39.1 (36.6–41.7)
Areas		0.06	0.81
Urban	43.0 (37.2–48.7)
Rural	42.1 (39.6–44.6)
Types of school		404.57	<0.0001
Middle school	35.3 (33.0–37.6)
Academic high school	30.0 (27.2–32.9)
Vocational high school	73.5 (69.5–77.5)

*Based on the weighted data.