Early childhood predictors of toddlers’ physical activity: longitudinal findings from the Melbourne InFANT Program

Table 3 Early childhood predictors (T1- 4-months of age) of toddlers’ physical activity (mins/day) at 19-months of age

Variable	Model A^a	Model B^b	Model C^c
	β (95% CI)	β (95% CI)	β (95% CI)
Maternal beliefs
Physical activity knowledge	2.76 (-16.01, 21.52)
Physical activity views	-0.73 (-10.76, 9.30)
Physical activity optimism	8.19 (-4.49, 20.88)
Physical activity self-efficacy	0.30 (-10.80, 11.39)
Future expectations	5.51 (-4.51, 15.54)
Floor concerns	-4.17 (-13.24, 4.88)
TV knowledge	6.95 (-3.76, 17.66)
TV use	4.95 (-6.93, 16.83)
TV self-efficacy	1.70 (-7.13, 10.52)
Maternal behaviours
Maternal physical activity (mins/week)	0.01 (-0.01, 0.02)
Maternal screen time (mins/week)	-0.01 (-0.04, 0.01)
Infant behaviours
Time spent playing games with adult (mins/week)	-0.01 (-0.08, 0.07)
Time spent being physically active with mum (mins/week)	0.01 (-0.06, 0.08)
Time spent having tummy time (mins/week)	0.02 (-0.12, 0.15)
Time spent on the floor (mins/week)	0.02 (-0.04, 0.08)
Time spent with other babies of a similar age (mins/week)	0.04 (0.01, 0.08)	0.04 (0.01, 0.08)	0.06 (0.02, 0.10)
Time spent with older toddlers or children (mins/week)	-0.02 (-0.11, 0.07)
Time spent outside (mins/week)	0.01 (-0.10, 0.11)
Home environment
Physical activity equipment in home (# items)	0.09 (-2.26, 2.44)
TVs in home (# TVs)	0.43 (-4.35, 5.22)

^aAdjusted for accelerometer wear time, intervention group and clustering by mother’s group attended.
^bAdjusted for accelerometer wear time, intervention group, clustering by mother’s group attended, and all variables associated in Model A (p-value of ≤0.10).
^cAdjusted for accelerometer wear time, intervention group, clustering by mother’s group attended, all variables associated with PA in Model A (p-value of ≤ 0.10), maternal education and age when the child began walking.

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