Skip to main content

Advertisement

Table 3 Univariate and multivariate Cox regression analyses of overall survival of 307 patients with primary thymoma

From: Long-term outcomes of 307 patients after complete thymoma resection

Variable Univariate Multivariate
HR 95% CI P value HR 95% CI P value
Age (years)
  ≤60       
  >60 2.290 1.171–4.481 0.016 1.801 0.850–3.818 0.125
Sex
 Female       
 Male 1.187 0.627–2.245 0.599    
Tumor size (cm) 1.114 0.989–1.255 0.075    
Myasthenia gravis
 Yes       
 No 1.554 0.647–3.730 0.324    
WHO histological classification
 A + AB       
 B1 4.904 1.510–15.930 0.008 4.455 1.329–14.936 0.016
 B2 3.605 1.147−11.333 0.028 2.860 0.823–9.940 0.098
 B3 11.819 3.884–35.964 <0.001 6.372 1.837–22.103 0.004
Masaoka stage
 I       
 II 1.272 0.418–3.877 0.672 0.930 0.291–2.966 0.902
 III 3.468 1.116–10.777 0.032 1.812 0.531–6.184 0.342
 IVa 11.705 3.495–39.203 <0.001 4.215 1.010–17.593 0.048
Surgical approach
 Transthoracic       
 Transsternal 1.001 0.485–2.063 0.998    
 VATS 1.455 0.597–3.547 0.409    
Postoperative radiotherapy       
 Yes       
 No 1.516 0.775–2.966 0.224    
  1. CI confidence interval, HR hazard ratio, WHO World Health Organization, VATS video-assisted thoracoscopic surgery