Table 1.

Availability of FFO and FVS within CTs according to poverty level and ethnic diversity (n = 247)

		Median availability of food outlets by quartile of poverty levela					Median availability of food outlets by quartile of ethnic diversityb
Food environment measure	Median Availability (IQR)	1 Least poverty	2	3	4 Most poverty	Pc	1 Least diversity	2	3	4 Most diversity	Pc
FFO relative availability (%)	15.6 (11.4, 21.9)	21.1	18.3	15.7	13.2	<0.001	15.9	15.3	15.0	16.1	0.281
FFO absolute availability (n/km2)	1.1 (0.6, 1.9)	0.7	1.1	1.4	1.2	<0.001	1.0	0.9	1.2	1.2	0.005
FVS relative availability (%)	35.4 (26.7, 49.2)	32.4	35.3	33.9	41.0	0.001	27.3	33.3	40.8	45.4	<0.001
FVS absolute availability (n/km2)	1.9 (0.7, 3.7)	0.4	1.5	1.8	2.8	<0.001	1.3	1.2	2.5	2.3	<0.001

FFO fast-food outlets, FVS stores selling fresh fruits and vegetables, IQR interquartile range, CT census tract

^aCutoff points for the lowest through the highest quartile of the percentage of residents in households below the low-income threshold are 15.8 %, 24.8 %, and 36.9 %, respectively

^bCutoff points for the lowest through the highest quartile of the percentage of households speaking no official language are 12.7 %, 21.3 %, and 37.2 %

^cp value of gradients in food outlets across levels