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Standardized incidence ratios for lung cancer.
| SIR | Age standardization | Age + spatial smoothing | Age + spatial smoothing + SES |
|---|---|---|---|
| Mean | 1.01 | 1.00 | 0.97 |
| Median | 0.97 | 0.97 | 0.97 |
| Standard deviation | 0.43 | 0.17 | 0.08 |
| Minimum | 0.00 | 0.66 | 0.81 |
| Maximum | 3.55 | 1.41 | 1.20 |
| Interquartile range | 0.79–1.21 | 0.86–1.12 | 0.90–1.04 |
Distribution of SIRs for lung cancer within the study area after indirect standardization for age and sex, spatial smoothing, and correcting for the influence of SES.
