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Table 3 Multivariate survival analysis for disease-free and overall survival of the 42 patients

From: Treatment and prognosis of type B2 thymoma

   Disease-free survival    Overall survival  
Variable Hazard ratio 95% confidence interval P Hazard ratio 95% confidence interval P
Gender (male vs female ) 0.448 0.144–1.395 0.166 0.275 0.069–1.100 0.068
Age (≥50 vs <50) 1.058 0.249–4.507 0.939 0.777 0.134–4.491 0.778
Resection (yes vs no) 0.782 0.113–5.429 0.804 1.937 0.219–17.092 0.552
Adjuvant treatment (yes vs no) 1.385 0.421–4.555 0.591 2.853 0.649–12.545 0.165
Tumor size (>7 cm vs ≤7 cm) 3.079 0.657–14.417 0.153 2.514 0.371–17.041 0.345
Myasthenia gravis (yes vs no) 1.204 0.182–7.945 0.847 0.598 0.046–7.813 0.695
Stage (III + IV vs I + II ) 6.163 2.421–15.691 0.000 5.462 1.923–15.514 0.001