Physical activity and sedentary behavior across three time-points and associations with social skills in early childhood

Table 3 Sedentary behavior and physical activity over three time-points

	Time 1^b	Time 2^b	Time 3^b	b (95% CI)	p-value
Accelerometer-derived
Sedentary time (min/day)^a	318.4 (41.6)	334.2 (50.0)	352.1 (47.2)	0.44 (0.26, 0.62)	< 0.001
LPA (min/day)^a	237.8 (29.3)	259.1 (35.6)	273.2 (30.2)	0.35 (0.17, 0.54)	< 0.001
MVPA (min/day)^a	59.0 (19.7)	73.2 (24.6)	89.8 (29.1)	0.49 (0.33, 0.66)	< 0.001
Parental-reported
Screen time (min/day)	71.8 (18.9–154.3)	94.3 (50.5–197.1)	120.0 (53.6–188.6)	0.63 (0.45, 0.81)	< 0.001
Television/videos (min/day)	60.0 (15.4–122.1)	81.4 (41.8–173.6)	87.9 (50.4–147.9)	0.49 (0.33, 0.64)	< 0.001
Video/computer games (min/day)	0.0 (0.0–8.6)	0.0 (0.0–25.7)	5.7 (0.0–38.6)	0.45 (0.18, 0.72)	0.001

^aStandardized for wear time
^bValues represent mean (standard deviation) for variables normally distributed and median (inter-quartile range) for variables not normally distributed
p < 0.05

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