Table 2 Results of multivariate analysis of breast cancer specific survival and independent factors for length of survival (p < 0.0001; 3 degrees of freeedom; -2 log likelihood = 396.46; chi-square = 44.78)
From: Surgical treatment of breast cancer in patients aged 80 years or older – how much is enough?
| Characteristics | Subgroup | Relative Risk | Confidence Interval 95%for Relative Risk |
|---|---|---|---|
| pT-stage | pT1 or pT2 | 1 | |
| pT3 or pT4 | 1.045 | 1.017 – 1.074 | |
| pN-stage | pN0 or unknown | 1 | |
| pN1 or pN2 or pN3 | 4.589 | 2.393 – 8.799 | |
| Estrogen receptors | Positive | 1 | |
| Negative | 3.935 | 1.940 – 7.984 |