Table 2 Biological data and comorbidity in the study and control groups
|  | All patients % (n = 212) | Study group with neoadjuvant treatment % (n = 106) | Control group without neoadjuvant treatment % (n = 106) | p-value |
|---|---|---|---|---|
Gender ratio (f : m) | 1 : 1.94 | 1 : 2.92 | 1 : 1.35 | <0.01 |
Age (mean) | 65.4 | 62.3 | 68.5 | 0.06 |
Comorbidity | 77.0 | 68.6 | 85.5 | <0.01 |
 Pulmonary | 9.1 | 5.7 | 12.5 | 0.01 |
 Cardiovascular | 23.9 | 21.9 | 26.0 | 0.52 |
 Renal | 7.2 | 6.7 | 7.7 | 0.80 |
 Diabetes | 19.1 | 11.4 | 26.9 | <0.01 |
 Hypertension | 47.8 | 40.0 | 55.8 | 0.03 |
 Others | 48.9 | 39.0 | 58.7 | <0.01 |
ASA score (mean) | 2.4 | 2.3 | 2.5 | 0.05 |