Table 2.

Changes in children’s physical activity and screen time from before to during COVID-19 (n = 95).

Health Behavior	Before COVID-19		During COVID-19		−ve Rank (n)	+ve Rank (n)	Z a	p	d
	$\overline{\mathit{x}}$  (SD)	Median (IQR)	$\overline{\mathit{x}}$  (SD)	Median (IQR)
Physical activity (days/week)	4.39 (1.96)	4 (3–6)	3.78 (2.19)	4 (2–5)	46	23	−2.53	0.01	0.18
Weekday recreational screen time (h/day)	2.12 (0.94)	1–2 (0–3)	2.63 (1.08)	2–3 (1–3)	10	47	−4.61	<0.01	0.33
Weekend recreational screen time (h/day)	3.34 (1.13)	2–3 (1–4)	3.83 (1.17)	3–4 (2–4+)	14	46	−3.79	<0.01	0.27

$\overline{\mathit{x}}$= mean; SD = standard deviation; IQR = interquartile range; d = Cohen’s d effect size; a = based on positive ranks. Physical activity is the number of days per week a child accumulated 60 min of moderate-to-vigorous physical activity (MVPA). Screen time is the number of hours a child uses a screen-based device in a day, and parents were asked to select one of the five options: ‘less than 1 h’, ‘1 to less than 2 h’, ‘2 to less than 3 h’, ‘3 to less than 4 h’ or ‘4 or more hours’.