Table 3

Final multivariate model of breast cancer specific survival

Variable
n
Deaths due to breast cancer (n)
Hazard ratio (95% CI)
P

BRCA1 mutation




     No mutation
397
52
1.00
0.01
     BRCA1
37
14
2.39 (1.20–4.75)

Tumor size




     < 2 cm
333
39
1.00
0.003
     ≥ 2 cm
101
27
2.19 (1.30–3.67)

Axillary node




     Negative
280
31
1.00
0.03
     Positive
154
35
1.78 (1.07–2.96)

Age (years)




     < 50
146
34
1.00
0.02
     ≥ 50
288
32
0.55 (0.33–0.92)


CI, confidence interval

Robson et al. Breast Cancer Res 2004 6:R8   doi:10.1186/bcr658