Table 4 Observed and predicted breast cancer survival by NPI prognostic groups and decile of risk predicted by the NZ model
Decile of NZ index | NPI good prognostic group | NPI moderate prognostic group | NPI poor prognostic group | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Â | Total cases | Number of predicted deaths | Number of observed deaths (KM) | Predicted survival rate NZ model | Observed survival rate, KM | 95% CI observed survival | Total cases | Number of predicted deaths | Number of observed deaths (KM) | Predicted survival rate NZ model | Observed survival rate, KM | 95% CI observed survival | Total cases | Number of predicted deaths | Number of observed deaths (KM) | Predicted survival rate NZ model | Observed survival rate, KM | 95% CI observed survival |
1 | 259 | 2.6 | 0.0 | 99.0 | 100.0 | Â | 0 | 0 | 0 | 100.0 | Â | Â | 0 | 0 | 0 | Â | Â | Â |
2 | 239 | 4.8 | 6.4 | 98.0 | 97.3 | 91.2–99.2 | 18 | 0.4 | 0 | 97.8 | 100.0 |  | 0 | 0 | 0 |  |  |  |
3 | 211 | 8.3 | 7.2 | 96.1 | 96.6 | 90.9–98.7 | 60 | 2.2 | 1.5 | 96.3 | 97.5 | 83.5–99.7 | 0 | 0 | 0 |  |  |  |
4 | 156 | 8.3 | 6.5 | 94.7 | 95.8 | 87.4–98.7 | 88 | 4.9 | 2 | 94.4 | 97.7 | 85.2–99.7 | 1 | 0.1 | 1 | 90.0 | 0.0 |  |
5 | 76 | 6.3 | 5.5 | 91.7 | 92.8 | 73.9–98.2 | 186 | 14.8 | 23 | 92.0 | 87.6 | 77.6–93.3 | 2 | 0.1 | 0 | 95.0 | 100.0 |  |
6 | 64 | 6.6 | 6.0 | 89.7 | 90.6 | 76.3–96.4 | 178 | 19.3 | 28.1 | 89.2 | 84.2 | 74.8–90.3 | 11 | 1.3 | 0 | 88.2 | 100.0 |  |
7 | 13 | 2.2 | 3.7 | 83.1 | 71.5 | 26.2–92.3 | 218 | 33.6 | 21.3 | 84.6 | 90.2 | 82.5–94.7 | 26 | 4 | 2.9 | 84.6 | 88.8 | 61.5–96.9 |
8 | 3 | 0.6 | 0.0 | 80.0 | 100.0 |  | 188 | 40.2 | 39.3 | 78.6 | 79.1 | 71.0–85.2 | 69 | 15.8 | 12.4 | 77.1 | 82.0 | 65.7–91.2 |
9 | 0 |  |  |  |  |  | 143 | 43.1 | 29.6 | 69.9 | 79.3 | 68.1–86.9 | 114 | 39.1 | 31.4 | 65.7 | 72.5 | 61.3–81.0 |
10 | 0 |  |  |  |  |  | 44 | 20.7 | 10.8 | 53.0 | 75.5 | 51.6–88.6 | 212 | 123.2 | 119.6 | 41.9 | 43.6 | 34.5–52.4 |