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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