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Table 5 Multivariate analysis comparing survival in subgroups of patients with de novo MBC stratified by both clinicopathologic and treatment-related characteristics

From: Impact of modern chemotherapy on the survival of women presenting with de novo metastatic breast cancer

Characteristic Hazard ratio 95% CI P-value
Category    
 A 1.00 reference 0.76
 A + B 1.04 0.77 – 1.40  
Age    
 <50 1.00 reference 0.0008
 ≥50 1.61 1.23 – 2.20  
AI    
 No 1.00 reference 0.0008
 Yes 0.50 0.34 – 0.75  
Zoledronic acid    
 No 1.00 reference 0.005
 Yes 0.45 0.26 – 0.79