Table 2a New grading system – recurrence of ipsilateral DCIS or invasive carcinoma
Feature | Category | No. cases | No. events | HR (95% CI) | χ 2 for trend, P- value |
|---|---|---|---|---|---|
Recurrence of ipsilateral DCIS or invasive | |||||
Grading system, four tier | Low | 86 | 6 | 0.42 (0.18–0.95) | 22.11 |
Intermediate | 225 | 13 | 0.33 (0.19–0.60) | P=0.0001 | |
High | 430 | 47 | 0.62 (0.43–0.88) | ||
Very high | 483 | 88 | 1.00a | ||
New grade, three tier | Low/intermediate | 311 | 19 | 0.36 (0.22–0.58) | 21.91 |
High | 430 | 47 | 0.62 (0.43–0.88) | P=0.0001 | |
Very high | 483 | 88 | 1.00a | ||
Recurrence of ipsilateral DCIS | |||||
Grading system, four tier | Low | 86 | 4 | 0.44 (0.15–1.20) | 15.42 |
Intermediate | 225 | 7 | 0.28 (0.12–0.62) | P=0.002 | |
High | 430 | 32 | 0.66 (0.43–1.02) | ||
Very high | 483 | 56 | 1.00 | ||
New grade, three tier | Low/intermediate | 311 | 11 | 0.32 (0.16–0.61) | 14.97 |
High | 430 | 32 | 0.66 (0.43–1.02) | P=0.0006 | |
Very high | 483 | 56 | 1.00 | ||
Recurrence of ipsilateral invasive | |||||
Grading system, four tier | Low | 86 | 2 | 0.41 (0.10–1.72) | 6.67 |
Intermediate | 225 | 6 | 0.46 (0.19–1.11) | P=0.08 | |
High | 430 | 14 | 0.53 (0.28–0.99) | ||
Very high | 483 | 32 | 1.00 | ||
New grade, three tier | Low/intermediate | 311 | 8 | 0.45 (0.21–0.98) | 6.65 |
High | 430 | 14 | 0.53 (0.28–0.99) | P=0.04 | |
Very high | 483 | 32 | 1.00 |
