Survey methodology of the geographic research on wellbeing (GROW) study

BMC Research Notes

Table 5 Selected Built Environment characteristics, GROW respondents living in six California counties, N = 2637

	Mean (SE)
Parks
Straight line (Euclidian) distance to closest park (kilometers)^a	0.458 (0.007)
Area of parks within a 0.5 mile buffer (square kilometers)^a	0.102 (0.003)
Tobacco outlets
Street network distance to closest tobacco outlet (kilometers)	1.209 (0.030)
Mean number of all tobacco outlets within a 0.5 mile buffer	1.7 (0.04)
Mean straight line (Euclidian) distance of all tobacco outlets within a 0.5 mile buffer (kilometers)^b	0.530 (0.004)
Grocery stores
Street network distance to closest grocery store (kilometers)	1.129 (0.023)
Mean number of all grocery stores within a 0.5 mile buffer	2.1 (0.06)
Mean straight line (Euclidian) distance of all grocery stores within a 0.5 mile buffer (kilometers)^c	0.538 (0.004)
Fast food restaurants
Street network distance to closest fast food restaurant (kilometers)	0.988 (0.023)
Mean number of all fast food restaurants within a 0.5 mile buffer	3.6 (0.08)
Mean straight line (Euclidian) distance of fast food restaurants within a 0.5 mile buffer (kilometers)^d	0.562 (0.003)

Excludes 103 women with inaccurate tract geocodes
^aExcludes parks less than 0.1 acre
^bTobacco outlets include tobacco shops and convenience stores; mean distance is for the 1647 respondents with at least 1 outlet within 0.5 mile of her residence
^cGrocery stores include full-service markets, fruit and vegetable markets, and farmer’s markets; mean distance is for the 1688 respondents with at least 1 store within 0.5 mile of her residence
^dmean distance is for the 1920 respondents with at least 1 restaurant within 0.5 mile of her residence

ISSN: 1756-0500