Research Article
Spatial Analysis of County-Level Breast Cancer Mortality in Texas
Table 1
List of breast cancer mortality clusters using Discrete Poisson model at county level in Texas for the years 2000 to 2008.
| Cluster | Observed cases | Expected Cases | RR | LLR | P value |
| (a) Without covariate adjustment | | | | | | Most likely cluster | 3388 | 2754.18 | 1.27 | 78.04 | <0.001 | Secondary cluster 1 | 496 | 319.35 | 1.57 | 42.43 | <0.001 | Secondary cluster 3 | 525 | 382.84 | 1.38 | 24.08 | <0.001 | Secondary cluster 4 | 1992 | 1775.27 | 1.13 | 13.84 | <0.001 | Secondary cluster 5 | 119 | 71.95 | 1.66 | 12.88 | <0.001 | Not significant cluster | 52 | 33.23 | 1.57 | 4.52 | 0.654 |
| (b) With adjustment of race/ethnic status of population | | | | | | Most likely cluster | 4550 | 3843.34 | 1.23 | 74.66 | <0.001 | Secondary cluster 1 | 476 | 363.25 | 1.32 | 16.21 | <0.001 | Not significant cluster | 119 | 85.39 | 1.40 | 5.91 | 0.26 | Not significant cluster | 1209 | 1111.12 | 1.09 | 4.41 | 0.68 | Not significant cluster | 713 | 640.85 | 1.12 | 4.04 | 0.80 | Not significant cluster | 413 | 370.87 | 1.12 | 2.35 | 1.00 |
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Abbreviations: RR, Relative risk; LLR, Log-likelihood ratio.
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