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. 2015 Aug 1;8(8):9307–9313.

Table 2.

Multivariate Cox regression analyses of clinicopathological variables and breast cancer survival

Variables OS RFS


Hazard ratio (95% CI) P Hazard ratio (95% CI) P
Age (< 50 vs. ≥50) 0.676 (0.541-2.419) 0.594 0.724 (0.528-2.530) 0.578
Side (Left vs. Right) 0.953 (0.462-1.814) 0.891 1.035 (0.617-1.193) 0.848
Tumor stage (II-IV vs. I) 2.235 (0.756-7.982) 0.031 2.293 (0.503-9.628) 0.045
Tumor grade (G3 vs. G1-2) 1.505 (0.310-4.825) 0.161 1.085 (0.291-4.634) 0.165
Tumor size (> vs. ≤ 2 cm) 1.717 (0.638-2.148) 0.061 2.139 (0.368-3.803) 0.097
Histological type (> vs. ≤ 5 µg/ml) 1.623 (0.519-5.342) 0.413 1.467 (0.424-4.078) 0.544
Lymph nodes status (+ vs. -) 2.581 (0.928-2.695) 0.047 2.296 (0.754-3.876) 0.063
PBRM1 expression (Low vs. High) 2.195 (0.335-3.604) 0.030 1.930 (0.658-3.172) 0.051