Table 3

Multiple regression analysis of non-BRCA1/2 tumors versus BRCA1 tumors: final model after stepwise regression

Odds ratio (95% CI)a
Mitotic count
0–41.0
5–90.63 (0.28–1.39)
10–190.13 (0.04–0.41)
20–390.06 (0.03–0.54)
40+0.06 (0.01–0.33)
χ21 = 15.90 P < 0.0001
Lymphocytic infiltration
None1.0
Mild0.57 (0.28–1.16)
Prominent0.15 (0.05–0.44)
χ21 = 11.31 P = 0.0008
  • a CI, confidence interval.