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Table 4 Cox multivariable analysis

From: Long-term prognosis of breast cancer detected by mammography screening or other methods

Variable HR (95% CI) Pvalue
Detection outside screening 1.69 (1.06 to 2.70) 0.028
Tumor size (per cm) 1.02 (1.01 to 1.03) < 0.001
Positive lymph nodes (n/metastatic node) 1.31 (1.10 to 1.17) < 0.001
Histological grade (grade II vs grade III vs grade I) 2.54 (1.52 to 4.25) < 0.001
PR (negative vs positive) 1.23 (0.92 to 1.64) 0.154
HER2 amplification (positive vs negative) 1.45 (1.06 to 1.97) 0.019
Age at diagnosis (years)   
   ≤ 39a 1.00  
   40 to 49 0.62 (0.28 to 1.00) 0.051
   50 to 59 0.82 (0.50 to 1.34) 0.437
   60 to 69 0.92 (0.57 to 1.49) 0.733
   ≥ 70 1.13 (0.70 to 1.83) 0.605
  1. aReference category.