Table 3.

Incidence Rate Ratios for Food Stores in 65,174 nationwide, 51,285 Urban and 13,889 Rural US Census Tracts, 2001

	Nationwide Sample			Urban Sample			Rural Sample
	Convenience IRR (95% CI)	Grocery IRR (95% CI)	Supermarket IRR (95% CI)	Convenience IRR (95% CI)	Grocery IRR (95% CI)	Supermarket IRR (95% CI)	Convenience IRR (95% CI)	Grocery IRR (95% CI)	Supermarket IRR (95% CI)
Neighborhood Race & Poverty
Predominantly White/Low Poverty	Ref	Ref	Ref	Ref	Ref	Ref	Ref	Ref	Ref
Predominantly White/Med Poverty	1.39 (1.34–1.45)**	1.68 (0.62–1.75)**	0.94 (090–0.98)*	1.52** (1.46–1.59)	1.79** (1.69–1.89)	0.93* (0.89–0.98)	1.23** (1.17–1.29)	1.39** (1.33–1.46)	1.05 (0.95–1.15)
Predominantly White/High Poverty	1.33 (1.26–1.42)**	1.77 (1.67–1.88)**	0.83 (0.76–0.91)**	1.49** (1.37–1.61)	1.77** (1.63–1.93)	0.75** (0.68–0.84)	1.19** (1.11–1.27)	1.60** (1.48–1.72)	0.96 (0.83–1.12)
Predominantly Black/Low Poverty	0.52 (0.44–0.63)**	0.92 (0.79–1.08)	0.59 (0.45–0.77)**	0.53** (0.44–0.64)	0.98 (0.84–1.15)	0.58** (0.44–0.75)	0.97 (0.68–1.38)	1.37 (0.75–2.51)	0.55 (0.23–1.36)
Predominantly Black/Med Poverty	0.78 (0.66–0.92)*	1.60 (1.40–1.83)**	0.44 (0.35–0.55)**	0.77* (0.65–0.92)	1.69** (2.48–1.93)	0.43** (0.34–0.54)
Predominantly Black/High Poverty	0.91 (0.81–1.02)	2.34 (2.14–2.57)**	0.30 (0.26–0.34)**	0.84* (0.73–0.95)	2.52** (2.28–2.79)	0.25** (0.22–0.29)	1.39** (1.24–1.57)	1.76** (1.56–2.00)	0.77 (0.57–1.05)
Predominantly Hispanic/Low Poverty	0.80 (0.57–1.12)	1.23 (0.93–1.63)	0.86 (0.63–1.19)	0.79 (0.55–1.13)	1.27 (0.95–1.68)	0.86 (0.63–1.16)	1.25 (0.92–1.71)	1.22 (0.72–2.05)	0.70 (0.33–1.48)
Predominantly Hispanic/Med Poverty	1.12 (0.91–1.40)	2.25 (1.91–2.65)**	0.80 (0.63–1.01)	1.11 (0.88–1.41)	2.42** (2.04–2.87)	0.78* (0.62–0.99)
Predominantly Hispanic/High Poverty	1.52 (1.27–1.84)**	3.13 (2.73–3.57)**	0.60 (0.53–0.69)**	1.52** (1.23–1.87)	3.40** (2.96–3.91)	0.59** (0.51–0.68)	1.55** (1.35–1.77)	1.84** (1.42–2.39)	0.55* (0.38–0.78)
Predominantly Integrated/Low Poverty	0.80 (0.73–0.87)**	1.04 (0.91–1.19)	0.92 (0.85–0.99)*	0.82** (0.74–0.89)	1.10 (0.95–1.26)	0.90* (0.83–0.98)	0.50** (0.33–0.75)	0.77 (0.53–1.10)	0.85 (0.53–1.35)
Predominantly Integrated/Med Poverty	1.35 (1.24–1.47)**	1.93 (1.78–2.09)**	0.87 (0.80–0.96)*	1.36** (1.23–1.50)	2.09** (1.90–2.29)	0.86* (0.78–0.95)	1.36** (1.23–1.50)	1.32** (1.19–1.48)	1.04 (0.83–1.30)
Predominantly Integrated/High Poverty	1.42 (1.32–1.53)**	2.35 (2.18–2.52)**	0.63 (0.57–0.69)**	1.44** (1.31–1.59)	2.68** (2.46–2.91)	0.55** (0.49–0.62)	1.41** (1.31–1.53)	1.44** (1.32–1.58)	1.08 (0.92–1.27)
Region
Northeast	Ref	Ref	Ref	Ref	Ref	Ref	Ref	Ref	Ref
Midwest	1.18 (1.08–1.29)**	0.82 (0.76–0.89)**	1.18 (1.08–1.28)**	1.12* (1.00–1.26)	0.80** (0.72–0.88)	1.19** (1.08–1.31)	1.25** (1.16–1.33)	0.86** (0.79–0.94)	1.08 (0.93–1.25)
South	1.92 (1.75–2.09)**	1.23 (1.13–1.33)**	1.60 (1.48–1.74)**	2.04** (1.83–2.28)	1.19** (1.08–1.31)	1.70** (1.55–1.87)	1.62** (1.51–1.73)	1.39** (1.27–1.51)	1.21* (1.03–1.41)
West	0.90 (0.77–1.04)	1.06 (0.93–1.21)	1.53 (1.41–1.66)**	0.89 (0.74–1.08)	1.06 (0.91–1.25)	1.56** (1.43–1.72)	0.91* (0.84–0.99)	1.05 (0.93–1.18)	1.29* (1.09–1.52)
Population Density, per 1000	0.98 (0.96–0.98)**	1.01 (1.01–1.01)**	0.99 (0.98–0.99)*	0.97** (0.96–0.99)	1.01** (1.01–1.01)	0.99 (0.98–1.00)	1.01 (0.99–1.03)	0.88** (0.85–0.90)	1.23** (1.18–1.28)

The symbols * and ** represent p≤0.05 and p≤0.001, respectively.