| Characteristic | Overall N = 1,4571 |
No cVTE on discharge N = 1,2301 |
cVTE on discharge N = 2271 |
p-value2 |
|---|---|---|---|---|
| Year of operation | 6.0 (4.0, 9.0) | 6.0 (4.0, 9.0) | 8.0 (3.0, 11.0) | 0.4 |
| Year of operation | 900 | 767 | 133 | |
| Type of operation | <0.001 | |||
| Type of operation | 386 (26%) | 336 (27%) | 50 (22%) | |
| Type of operation | 73 (5.0%) | 71 (5.8%) | 2 (0.9%) | |
| Type of operation | 22 (1.5%) | 20 (1.6%) | 2 (0.9%) | |
| Type of operation | 976 (67%) | 803 (65%) | 173 (76%) | |
| Minimally invasive surgery | 146 (10%) | 105 (8.5%) | 41 (18%) | <0.001 |
| Intraoperative radiation therapy | 67 (4.6%) | 64 (5.2%) | 3 (1.3%) | 0.010 |
| Vascular reconstruction | 0.4 | |||
| Vascular reconstruction | 50 (3.4%) | 41 (3.3%) | 9 (4.0%) | |
| Vascular reconstruction | 1,335 (92%) | 1,132 (92%) | 203 (89%) | |
| Vascular reconstruction | 72 (4.9%) | 57 (4.6%) | 15 (6.6%) | |
| Margin status | 134 (9.2%) | 104 (8.5%) | 30 (13%) | 0.023 |
| Margin status | 1 | 1 | 0 | |
| Estimated blood loss (mL) | 350 (200, 600) | 350 (200, 600) | 200 (100, 450) | <0.001 |
| Estimated blood loss (mL) | 174 | 163 | 11 | |
| Postoperative blood transfusions within 72 hours | 187 (13%) | 153 (12%) | 34 (15%) | 0.3 |
| Postoperative blood transfusions within 72 hours | 1 | 1 | 0 | |
| Total blood transfused (units) | 2 (1, 4) | 2 (1, 4) | 2 (1, 3) | 0.5 |
| Total blood transfused (units) | 1,271 | 1,077 | 194 | |
| Neoadjuvant therapy | <0.001 | |||
| Neoadjuvant therapy | 1 (<0.1%) | 1 (<0.1%) | 0 (0%) | |
| Neoadjuvant therapy | 1,119 (77%) | 972 (79%) | 147 (65%) | |
| Neoadjuvant therapy | 337 (23%) | 257 (21%) | 80 (35%) | |
| Postoperative pancreatic fistula | 105 (7.2%) | 83 (6.7%) | 22 (9.7%) | 0.12 |
| History of venous thromboembolism | 5 (0.3%) | 3 (0.2%) | 2 (0.9%) | 0.2 |
| History of venous thromboembolism | 14 | 12 | 2 | |
| Length of stay (days) | 6 (5, 8) | 6 (5, 8) | 6 (5, 8) | 0.2 |
| Length of stay (days) | 2 | 1 | 1 | |
| Age at time of surgery (years) | 65 (56, 73) | 64 (55, 72) | 71 (64, 79) | <0.001 |
| Sex | 0.12 | |||
| Sex | 752 (52%) | 624 (51%) | 128 (56%) | |
| Sex | 705 (48%) | 606 (49%) | 99 (44%) | |
| Body mass index (kg/m²) | 25.9 (22.7, 29.7) | 25.9 (22.7, 29.7) | 25.9 (22.5, 29.3) | 0.6 |
| Body mass index (kg/m²) | 3 | 2 | 1 | |
| Diabetes mellitus | 0.002 | |||
| Diabetes mellitus | 137 (9.4%) | 107 (8.7%) | 30 (13%) | |
| Diabetes mellitus | 1,171 (80%) | 1,008 (82%) | 163 (72%) | |
| Diabetes mellitus | 149 (10%) | 115 (9.3%) | 34 (15%) | |
| Smoking history | 187 (13%) | 167 (14%) | 20 (8.8%) | 0.049 |
| ASA classification | <0.001 | |||
| ASA classification | 15 (1.0%) | 15 (1.2%) | 0 (0%) | |
| ASA classification | 721 (49%) | 687 (56%) | 34 (15%) | |
| ASA classification | 704 (48%) | 518 (42%) | 186 (82%) | |
| ASA classification | 17 (1.2%) | 10 (0.8%) | 7 (3.1%) | |
| Readmission within 30 days | 0.3 | |||
| Readmission within 30 days | 1,272 (87%) | 1,078 (88%) | 194 (85%) | |
| Readmission within 30 days | 182 (12%) | 150 (12%) | 32 (14%) | |
| Readmission within 30 days | 3 (0.2%) | 2 (0.2%) | 1 (0.4%) | |
| Major complications within 30 days | 211 (14%) | 175 (14%) | 36 (16%) | 0.5 |
| Death within 30 days | 6 (0.4%) | 5 (0.4%) | 1 (0.4%) | >0.9 |
| VTE event within 30 days | 21 (1.4%) | 19 (1.5%) | 2 (0.9%) | 0.8 |
| 1 Median (Q1, Q3); n (%) | ||||
| 2 Wilcoxon rank sum test; Fisher’s exact test; Pearson’s Chi-squared test | ||||