Table 2. Physical health and lifestyle factors.

Low: Low screen time; High: High screen time group; Independent samples t-tests for Physical Activity and Weekend Sleep Variability, and a chi-square or Fisher's exact test for Circadian Rhythm Disruption for p<0.05

Variables	Low Screen Time Level (N, 500)	High  Screen Time Level (N, 500)
Physical Activity (minutes per day) (Mean ± SD)	60 ± 15	30 ± 10
Weekend Sleep Variability (hours) (Mean ± SD)	0.8 ± 0.3	1.2 ± 0.4
Circadian Rhythm Disruption (%) (Mean ± SD)	5% ± 2%	20% ± 5%
P-Value	<0.05	<0.05