Table 1.

Summary statistics for the predictor variables in PIN3 data. Only the sample mean (proportion) is given for binary variables.

Variable	Mean	SD	Variable	Mean	SD
Percent of poverty line	440.02	218.38	Bad residential units	0.04	–
Maternal education	16.18	2.75	Bad residential kept grounds	0.10	–
Black	0.15	–	Abandoned residential units	0.02	–
Married	0.82	–	Bad public spaces	0.07	–
Age (years)	29.72	4.58	Litter	0.44	–
First birth	0.49	–	Graffiti	0.02	–
Body mass index (BMI)	25.12	6.38	Decoration	0.78	–
Gestational diabetes	0.04	–	Border	0.26	–
Smoker	0.08	–	Entrance sign	0.12	–
Working	0.71	–	Crime watch	0.08	–
Ozone (ppb)	27.8	10.4	Porches	0.78	–
Temperature (F)	59.46	15.25	People	0.39	–
Precipitation (In)	0.13	0.14	Playground	0.05	–
Urban	0.70	–	Sidewalk	0.35	–
Speed limit (MPH)	28.67	8.39