Table 3.

Unadjusted linear growth curve modeling examining estimated effect on students' baseline physical activity and physical activity trajectories.

	Estimated effect on baseline physical activity (minutes per day)		Estimated effect on physical activity trajectories (minutes per day per semester)
	Fixed effect	P value	Fixed Effect	P value
Student Characteristics
Gender
Female	−12.5 (2.04)	<0.0001	0.596 (0.598)	0.3194
Male	Referent		Referent
Baseline physical activity
Low	−47.7 (1.50)	<0.0001	7.11 (0.707)	<0.0001
Moderate	−25.8 (1.51)	<0.0001	4.20 (0.719)	<0.0001
High	Referent		Referent
BMI status
Overweight or obese	1.92 (3.21)	0.5512	−0.785 (0.901)	0.3894
Healthy weight	Referent		Referent
Missing	1.88 (2.35)	0.4252	−0.0527 (0.657)	0.9362
School neighbourhood characteristics
School location
Rural	−10.6 (2.25)	<0.0001	1.49 (0.658)	0.0234
Urban	Referent		Referent
Socioeconomic status
Low	−9.09 (2.27)	<0.0001	1.75 (0.664)	0.0086
High	Referent		Referent

Fixed effects of intercepts for each model are not shown.

Standard errors are shown in parentheses.

Referent categories are identified as “referent.”