Does the neighborhood built environment moderate the effectiveness of a weight-loss intervention for mothers with overweight or obesity? Findings from the Healthy Eating and Active Living Taught at Home (HEALTH) study

Table 3 Testing interactive effect of home neighborhood-built environment characteristics and study arm on weight outcomes.^ab

	BMI		Waist Circumference
	LRT statistic^c	P-value	LRT statistic	P-value
Urban Design and Transit Environment
Street Connectivity^d	1.9	0.17	3.0	0.08
Park Density^d	2.6	0.11	3.0	0.08
Park Distance^e	2.3	0.13	4.5	0.03
Metrobus Density^d	1.9	0.17	4.8	0.03
All-transit Density^d	1.9	0.17	4.8	0.03
Metrolink Density^d	3.6	0.06	4.3	0.04
Transit Stop Distance^e	2.0	0.16	4.6	0.03
Food Environment
Grocery Store Density^d	2.6	0.11	3.1	0.08
Grocery Store Distance^e	4.8	0.03	7.1	0.01
Convenience Store Density^d	4.1	0.04	5.4	0.02
Convenience Store Distance^e	6.0	0.01	6.7	0.01
Fast Food Density^d	1.8	0.18	3.2	0.07
Fast Food Distance^e	2.2	0.14	2.6	0.11

^aBody mass index and waist circumference
^bResults show interactive effects from baseline to 24-month follow-up (HEALTH study, 2012–2016)
^cLikelihood Ratio Test (LRT) statistic follows a Chi-Squared distribution
^dDensity Variables based on participant centric buffers of varying size and types (Euclidean [EB] and network [NB]). Buffer sizes and types per built environment characteristic were defined based on a sensitivity analysis (refer to Additional file 1 online appendix). Street connectivity (500 EB); park, Metrolink, grocery store, and convenience store (1000 EB); Metrobus and all-transit (1500 EB); fast food (1500NB)
^eVariables measured in meters
Note: Boldface indicates p < 0.15 for Likelihood Ratio Test for interaction
Note: based on final analytic sample (n = 151)

ISSN: 1479-5868