Table 2 |
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Summary of results from different census tract assignment methods (ZIP code centroids and geo-imputation). |
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| Population |
Cases |
Randoma |
Geographic Centroidb |
Population Centroidc |
Overall Population Distribution |
Population Distribution by Race/Ethnicity |
Population Distribution by Race/Ethnicity-Age |
| N |
Mean % (Min, Max %) |
Total % |
Total % |
Mean % (Min, Max %) |
Mean % (Min, Max %) |
Mean % (Min, Max %) |
|
|
|
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| All Cases |
95,303 |
14.1 (13.5,14.7) |
20.7 |
25.9 |
25.8 (25.3, 26.3) |
26.7 (26.0, 27.4) |
27.7 (26.5, 29.0) |
| Non-Hispanic White |
75,577 |
15.0 (14.6, 15.4) |
22.0 |
27.9 |
27.8 (27.4, 28.1) |
28.2 (27.7, 28.7) |
29.3 (28.4, 30.3) |
| Non-Hispanic Black |
11,123 |
9.8 (9.0, 10.8) |
15.3 |
16.6 |
16.5 (15.7, 17.4) |
20.1 (18.7, 21.0) |
21.3 (19.5, 23.2) |
| Hispanic |
6,368 |
11.1 (10.0, 12.4) |
16.3 |
19.2 |
18.8 (17.4, 20.0) |
19.8 (18.7, 21.3) |
20.2 (17.5, 22.7) |
| Asian |
2,235 |
13.7 (11.6, 15.8) |
17.3 |
25.4 |
26.0 (24.2, 28.5) |
28.8 (26.4, 31.5) |
28.8 (24.5, 33.5) |
| Age |
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| 20–49 |
11,931 |
14.2 (13.4, 15.2) |
22.0 |
26.5 |
26.5 (26.4, 27.4) |
27.5 (26.4, 28.4) |
27.7 (25.6, 29.5) |
| 50–64 |
29,452 |
14.2 (13.6, 14.8) |
21.1 |
26.4 |
26.2 (25.6, 26.6) |
27.0 (26.2, 27.3) |
27.4 (26.2, 28.6) |
| 65–84 |
47,798 |
14.1 (13.6, 14.5) |
20.3 |
25.4 |
25.6 (25.1, 26.0) |
26.5 (26.1, 27.2) |
27.8 (26.8, 28.8) |
| >85 |
6,122 |
13.9 (12.8, 15.3) |
19.4 |
25.9 |
25.2 (23.9, 26.4) |
25.9 (24.1, 27.4) |
29.1 (26.9, 31.3) |
| Population Density |
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| <1,132 |
17,262 |
16.5 (15.9, 17.2) |
29.6 |
29.6 |
30.8 (30.1, 31.2) |
31.4 (30.3, 32.1) |
31.8 (30.5, 33.1) |
| 1,133–2,882 |
23,036 |
15.3 (14.9, 15.8) |
24.1 |
29.0 |
30.2 (29.7, 31.0) |
30.8 (30.2, 31.2) |
32.4 (31.5, 33.4) |
| 2,883–5,078 |
21,744 |
14.1 (13.4, 14.6) |
19.2 |
27.1 |
25.6 (24.9, 26.2) |
26.4 (26.7, 27.4) |
27.8 (26.7, 28.7) |
| 5,079–11,579 |
18,822 |
14.7 (13.9, 15.5) |
17.1 |
26.3 |
24.9 (24.8, 25.3) |
26.4 (25.5, 27.2) |
26.8 (25.3, 28.2) |
| >11,579 |
14,439 |
8.6 (7.9, 9.3) |
12.0 |
14.3 |
14.3 (13.6, 15.0) |
15.5 (14.3, 16.2) |
16.3 (14.9, 17.6) |
|
|
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aRandom assignment was based on census tracts having equal probability within each postal ZIP code. bGeographic postal ZIP centroids were based on the center of the bounding rectangle for each ZIP code area. cPopulation weighted postal ZIP centroids were calculated as the mean of the census block centroid coordinates weighted by the number of persons per block. Source: Data from the New Jersey State Cancer Registry, New Jersey Department of Health and Senior Services, 2005. |
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|
Henry and Boscoe International Journal of Health Geographics 2008 7:3 doi:10.1186/1476-072X-7-3 |
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