Table 1.
Fitted Poisson models that compare the hazard rate functions of the USA and Catalonia (Cat).
| Comparison | Stage | β0 | β1 | Cov(β0, β1) | ||
|---|---|---|---|---|---|---|
| Coef. | SE | Coef. | SE | |||
| Cat 1980–89 vs USA 1975–79 | Localized | 0.5511 | 0.0786 | - | - | - |
| Regional | 0.2392 | 0.0938 | 0.1797 | 0.0610 | -0.0048 | |
| Distant | 0.2667 | 0.0898 | - | - | - | |
| Cat 1990–2001 vs USA 1975–79 | I | -2.9278 | 0.9619 | 1.0937 | 0.5068 | -0.4706 |
| II- | -1.1482 | 0.4722 | 0.5589 | 0.2776 | -0.1223 | |
| II+ | -0.8711 | 0.2304 | 0.3902 | 0.1417 | -0.0299 | |
| III | - | - | - | - | - | |
| IV | -0.4499 | 0.1313 | 0.3840 | 0.1125 | -0.0092 | |
| Cat 1990–2001 vs USA 1990–2001 | I | - | - | - | - | - |
| II- | -0.5765 | 0.4614 | 0.5387 | 0.2703 | -0.1160 | |
| II+ | -0.1054 | 0.2240 | 0.2837 | 0.1370 | -0.0279 | |
| III | - | - | - | - | - | |
| IV | -0.2916 | 0.1300 | 0.3127 | 0.1095 | -0.0087 | |
Note: The hazard ratios are obtained using the expression 
. When coefficients are not reported ("--") means that they were not statistically significant. Catalan data refer to the Girona Cancer Registry data.