Table 1

Texas counties detected with excess breast cancer mortality with statistical significance 1990–2001.
Potential Excess mortality
 Annual Age-adjusted rates (per 100,000)
 Year
 Observed deaths
 Expected deaths
 Relative Risk (RR) of excess mortality
 P Values
 Total counties
Most Likely Cluster for non-Hispanic Whites (90% study period and 50%population at risk)
 35.0
 1990 – 1996
 4088
 3623
 1.12
 0.001
 42
Secondary Cluster for non-Hispanic Whites
 34.8
 1990 – 1993
 2240
 1995
 1.12
 0.001
 41
Primary Cluster for Hispanic White
 29.0
 1990 – 1998
 1436
 1212
 1.18
 0.001
 127
Primary Cluster for Blacks (note: not statistically significant)
 34.1
 1991 – 1996
 791
 682
 1.15
 0.129
 15

Ed Hsu et al. International Journal of Health Geographics 2004 3:4   doi:10.1186/1476-072X-3-4
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