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Table 2 Number of geographic units (census tract, zip code, and county) with non-zero population and mortality data by race.

From: Identification of racial disparities in breast cancer mortality: does scale matter?

Geographic Level

 

White Non-Hispanics

Race African-Americans

Hispanics

Census Tract (4,388)

Population

4,382

4,322

4,375

 

Mortality

3,518

1,341

1,592

 

Percentage

80.28%

31.03%

36.39%

Zip Code (2,884)

Population

1,889

1,620

1,866

 

Mortality

1,284

597

674

 

Percentage

67.97%

36.85%

36.12%

County (254)

Population

253

209

253

 

Mortality

239

126

155

 

Percentage

94.47%

60.29%

61.26%

  1. The ratio of these two numbers, referred to as percentage, indicates the much smaller proportion of units where at least one death was observed for minority populations.