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Table 2 Univariate Cox proportional hazards model for survival until death from breast cancer at 3 years and 10 years.

From: Use of immunohistochemical markers can refine prognosis in triple negative breast cancer

   3 years 10 years
Variable Definition RR (95% CI) P RR (95% CI) P
Center VGH 1.   1.  
  JGH 0.67 [0.35; 1.31] .25 0.76 [0.51; 1.13] .17
Age of diagnosis < 50 years 1.   1.  
  ≥ 50 years 1.10 [0.55; 2.16] .79 0.97 [0.66; 1.44] .89
Histological grade*, § 1 1.   1.  
  2 2.62 [0.88; 7.80] .08 1.63 [0.97; 2.73] .06
  3 5.47 [1.84; 16.2] .002 2.37 [1.36; 4.11] .002
Tumor Size § < 2 cm 1.   1.  
  ≥ 2 cm 3.22 [1.42; 7.32] .005 2.82 [1.78; 4.46] .0001
Lymph nodes § No 1.   1.  
  Yes 2.78 [1.37; 5.65] .005 2.21 [1.46; 3.32] .0002
  1. * Test of overall histological grade. P-value = 0.004 (at 3 years) and 0.009 (at 10 years).
  2. § Adjusting for missing values.
  3. The total number of subjects is 456. The total number of events is 39 at 3 years and 111 at 10 years.