Association between multi-component initiatives and physical activity-related behaviors: interim findings from the Healthy Schools Healthy Communities initiative

Table 4 Summary of multiple longitudinal regression analysis, Missouri HSHC 2013–2017

Model 1: Number of days per week physically active 60 + minutes
	β	SE	99% CI	p-value^a
Constant	4.437	0.11	4.295 to 4.670	< 0.0001
Average MCI Intensity Score	0.010	0.00	0.003 to 0.017	0.004
Baseline (ref)
1 year	0.257	0.13	−0.009 to 0.522	0.058
2 years	−0.040	0.16	−0.367 to 0.286	ns
3 years	0.039	0.20	−0.355 to 0.432	ns
4 years	0.035	0.23	−0.421 to 0.491	ns
Cohort 1 (ref).
Cohort 2	0.342	0.11	0.125 to 0.559	0.003
Cohort 3	0.050	0.13	−0.214 to 0.314	ns
Enrollment size	−0.015	0.00	−0.025 to − 0.006	0.002
Model 2: Number of screen time hours per weekday
	β	SE	99% CI	p-value^a
Constant	2.420	0.08	2.256 to 2.583	< 0.0001
Average MCI Intensity Score	−0.006	0.00	−0.011 to − 0.001	0.016
Baseline (ref).
1 year	0.123	0.09	−0.065 to 0.310	ns
2 years	0.308	0.12	0.078 to 0.539	0.009
3 years	0.339	0.14	0.061 to 0.618	0.018
4 years	0.394	0.16	0.071 to 0.716	0.017
Cohort 1 (ref).
Cohort 2	−0.108	0.07	−0.261 to 0.044	ns
Cohort 3	−0.135	0.09	−0.321 to 0.051	ns
Enrollment size	0.006	0.00	−0.001 to 0.012	0.080
Model 3: Number of screen time hours per weekend day
	β	SE	99% CI	p-value^a
Constant	3.131	0.07	2.993 to 3.269	< 0.0001
Average MCI Intensity Score	−0.003	0.00	−0.007 to 0.001	0.098
Baseline (ref).
1 year	−0.060	0.08	−0.218 to 0.098	ns
2 years	0.033	0.10	−0.161 to 0.227	ns
3 years	0.049	0.12	−0.186 to 0.283	ns
4 years	0.113	0.14	−0.159 to 0.385	ns
Cohort 1 (ref)
Cohort 2	−0.079	0.06	−0.208 to 0.050	ns
Cohort 3	0.173	0.08	−0.330 to − 0.017	0.031
Enrollment size	0.007	0.00	0.001 to 0.012	0.022

^ap-values for the differences in grant time (fixed effects) least squares means were adjusted for multiple comparisons using the Bonferroni correction. All analyses conducted in SAS 9.4 (SAS Institute, Inc. Cary, NC)

ISSN: 1471-2458