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Table 2 Univariate and multivariate analyses of overall survival according to the surgeon class (N = 3928)

From: For patients with breast cancer, geographic and social disparities are independent determinants of access to specialized surgeons. A eleven-year population-based multilevel analysis

  Overall survival (%) Univariate analysis Log-Rank p-value Cox Multivariate analysis
Hazard ratio (95% CI*) p-value
Surgeon class     
High-volume 87.2 < 0.001 0.81 (0.67-0.98) 0.027
Others 81.6 1
Age at diagnosis   
< 50 years old 90.0 < 0.001 0.87 (0.68-1.11) 0.267
50 to 74 years old 89.6 1  
> 74 years old 61.2 3.31 (2.71-4.04) < 0.001
T stage     
T1 90.4 < 0.001 1  
T2 76.6 1.67 (1.35-2.05) < 0.001
T3 or 4 51.9 2.70 (2.00-3.63) < 0.001
Node status     
N0 90.4 < 0.001 1 < 0.001
N+ 76.2 1.92 (1.58-2.32)
Metastasis status     
M0 86.8 < 0.001 1 < 0.001
M+ 34.8 3.32 (2.37-4.64)
At least one comorbidity     
Yes 87.5 < 0.001 1.04 (0.85-1.26) 0.720
No 79.7 1
Circumstances of diagnosis     
Screening 93.0 < 0.001 0.54 (0.43-0.68) < 0.001
Clinical symptoms 83.1 1
  1. * CI: Confidence Interval.