An observational study of recess quality and physical activity in urban primary schools

BMC Public Health

Table 4 Estimates of effects on percent of MVPA during recess

Estimation of covariance parameters
Parameter	Estimate	s.e.	Wald Z	p-value	95% CI of the estimate
Residual	.110	.003	40.99	<.001	.105, .115
Intercept Variance (recess)	.009	.002	4.12	<.001	.006, .014
Estimation of fixed effects
Parameter	Estimate	s.e.	Ttest statistic	p-value	95% CI of the estimate
Intercept	.641	.093	6.87	<.001	.454, .827
Gender	−.215	.065	−3.32	.001	−.341, −.088
School	−.002	.005	−.365	.717	−.012, .008
Safety and Structure of Environment	−.002	.006	−.380	.705	−.014, .010
Adult Engagement and Supervision	−.003	.008	−.354	.724	−.018, .013
Student behaviors	.003	.006	.519	.605	−.009, .015
Gender * Safety and Structure of Environment	.006	.004	1.32	.186	−.003, .014
Gender * Adult Engagement and Supervision	.012	.006	1.99	.046	.001, .024
Gender * Student behaviors	−.014	.004	−3.725	<.001	−.021, −.007

ISSN: 1471-2458