Table 2 Univariate analysis of patient-specific parameters of patients with and without PPCs
|  | No PPC (n = 157) | PPC (n = 178) | P Value |
|---|---|---|---|
Patient-specific parameters | |||
 Age (years) | 61 ± 10 | 62 ± 10 | 0.1 |
 Gender (male/female) | 137 (87)/21 (13) | 153 (86)/24 (13) | 1 |
 Alcohol abuse (n) | 52 (33) | 65 (37) | 0.5 |
 Smoking (n) | 74 (47) | 96 (54) | 0.2 |
 Neoadjuvant RCT (n) | 124 (79) | 138 (78) | 1 |
 ASA ≥ 3 (n) | 55 (35) | 87 (49) | 0.01 |
 BMI (kg/m2) | 25 (22–27) | 24 (22–28) | 0.8 |
 UICC ≥3 (n) | 41 (26) | 43 (24) | 0.8 |
 Hb before surgery (mg/dl) | 12.7 (11.6–13.6) | 12.6 (11.3–14) | 0.65 |