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Table 1 Summary statistics for breast and cervix cancer risk estimates. Mean and variance of observed age-adjusted mortality rates per 100,000 person-years and risk values estimated using four alternative methods. The average weight assigned to the original rate in the estimation of the risk at the same location is reported as "kernel weight".

From: Geostatistical analysis of disease data: estimation of cancer mortality risk from empirical frequencies using Poisson kriging

Estimator Breast cancer Cervix cancer
  Mean Variance Kernel weight Mean Variance Kernel weight
Observed rates 27.31 14.99 1.00 4.02 2.02 1.00
Population-weighted average 28.61 5.89 0.03 3.61 0.50 0.03
Global Empirical Bayes 28.65 4.44 0.68 3.63 0.61 0.66
Local Empirical Bayes 28.02 7.54 0.55 3.83 0.91 0.61
Poisson kriging 27.62 8.00 0.51 3.96 0.95 0.60