Table 1 Comparative analysis of baseline characteristics
Variables | Preoperative IV iron | No IV iron | p-value |
|---|---|---|---|
n = 30 (46.9%) | n = 34 (53.1%) | ||
Demographics | |||
Age (years) | 67.5 ± 13.4 | 69.8 ± 13 | 0.502 |
Gender (male, %) | 10 (33.3) | 18 (52.9) | 0.136 |
Body mass index (kg/m− 2) | 23.6 ± 2.3 | 23.3 ± 2.4 | 0.589 |
ASA class over III | 5 (16.7) | 4 (11.8) | 0.723 |
Diabetes mellitus | 8 (26.7) | 5 (14.7) | 0.351 |
Hypertension | 14 (46.7) | 13 (38.2) | 0.613 |
History of stroke | 3 (10) | 2 (5.9) | 0.659 |
Preoperative anemia* (%) | 14 (46.7) | 15 (44.1) | 1.000 |
Transfusion before operation | 2 (6.7) | 0 | 0.216 |
Use of anticoagulant | 7 (23.3) | 10 (29.4) | 0.777 |
Tumor location | |||
Pancreas | 16 (53.3) | 16 (47.1) | 0.802 |
Duodenum | 1 (3.3) | 1 (2.9) | 1.000 |
Common bile duct | 9 (30) | 11 (32.4) | 1.000 |
Ampulla of Vater | 4 (13.3) | 5 (14.7) | 1.000 |
Others | 0 | 1 (2.9) | 1.000 |
Tumor staging** | |||
Stage I | 11 (36.7) | 13 (38.2) | 1.000 |
Stage II | 10 (33.3) | 13 (38.2) | 0.796 |
Stage III | 9 (30) | 7 (20.6) | 0.405 |
Tumor manifestations | |||
Concomitant malignancy | 9 (30) | 3 (8.8) | 0.052 |