A pair of flow charts shows the relationships between education level and meeting physical activity guidelines, taking into account the covariates of age, sex, race/ethnicity, geography, and community focus and the mediating effects of perceived neighborhood safety from crime and perceived neighborhood walkability. The influence of education level and each significant covariate on meeting physical activity guidelines and perceived neighborhood safety from crime and perceived neighborhood walkability are reported as standardized regression coefficients from the structural equation models. The effects of perceived neighborhood safety from crime and perceived neighborhood walkability on meeting physical activity guidelines are also reported as standardized regression coefficients from the structural equation models in the following tables.
Flow Chart A. Mediation Model From Education to Meeting Physical Activity Guidelines Showing the Direct Effects Of Education and the Indirect (Mediated) Effect Acting Through Perceived Neighborhood Safetya
Covariates and Mediating Effects	Standardized Regression Coefficients
	Neighborhood Safety	Physical Activity Guidelines
Age	−0.039	—
Sex	0.059	0.049
Race	0.186	0.049
Education	0.197	0.123
Geography	−0.035	0.045
Community focus	0.029	—
Neighborhood safety	—	0.048
Flow Chart B. Mediation Model From Education to Meeting Physical Activity Guidelines Showing the Direct Effects of Education Level and the Indirect (Mediated) Effect Acting Through Perceived Neighborhood Walkabilityb
Covariates and Mediating Effects	Neighborhood Walkability	Physical Activity Guidelines
Age	−0.078	0.052
Sex	—	0.046
Race	0.129	0.118
Education	0.164	0.044
Geography	—	—
Community focus	0.039	0.091
Neighborhood walkability	—	—
SEM showed that level of education had significant direct and indirect effects on meeting physical activity guidelines. The indirect effects are partially mediated by both perceived neighborhood walkability and perceived neighborhood safety from crime. Neighborhood walkability mediates 11.3% of the total effect of education on meeting physical activity guidelines. Neighborhood safety mediates 6.8% of the total effect of education on meeting physical activity guidelines.

Abbreviation: —, not applicable.

^a Effects of education level with mediation by perceived neighborhood safety from crime: direct effect = 0.123; indirect effect = 0.197 × 0.048 = 0.009; total effect = 0.123 + 0.009 = 0.132; mediation proportion = 0.009 ÷ 0.132 × 100 = 6.8%.

^b Effects of education with mediation by perceived neighborhood walkability: direct effect = 0.118; indirect effect = 0.164 × 0.091 = 0.015; total effect t =0.118 + 0.015 = 0.133; mediation proportion = 0.015 ÷ 0.133 × 100 = 11.3%.