Table 2.

Summary of study variables

Exposure study variables	Study covariates (continued)
Objective built environment Measures	Body size and health conditions
Open recreational space	Child BMI
Block size	Parent BMI
Block length	Child anxiety
Intersection density	Child asthma
Residential density	Child ADHD/ADD
Home and neighborhood characteristics	Child electronic availability and use
Home building type	Presence of electronics in bedroom
Home yard	Ownership of electronics
Street sidewalks	Minutes/day of sedentary behavior
Street type	Child active commuting
Neighborhood accessibility	Frequency of active commuting
Education destinations	Duration of active commuting
Transport destinations	Dog ownership
Recreation destinations	Frequency of child dog walking
Food retail destinations	Frequency of child dog playing
Social destinations	Parent rules
Outcome study variable	Child’s homework rules
Child active Play	Child’s electronic use rules
Minutes/day of active play	Child’s outdoor play rules
Occurrence of active play	Parent neighborhood perceptions
Study covariates	Perceived neighborhood safety
Demographics	Perceived neighborhood quality
Child age	Parent physical activity
Child sex	Employment physical activity
Child race/ethnicity	Recreational physical activity
Child nativity	Active play qualifiers
Child education	Location of active play
Parent age	Type of active play
Parent sex	Independence of active play
Parent race/ethnicity	Weather
Parent nativity	Total rainfall
Parent education	Mean temperature
Household income