Variable N Overall, N = 7,5441 Clinically Relevant Postoperative Pancreatic Fistula p-value2
CR-POPF, N = 1,4581 No CR-POPF, N = 6,0861
Day 7,493 <0.001
>5 3,102 (41%) 935 (64%) 2,167 (36%)
1 975 (13%) 99 (6.8%) 876 (15%)
3-5 3,416 (46%) 422 (29%) 2,994 (50%)
Unknown 51 2 49
Age 7,544 65.00 (11.44) 64.31 (11.94) 65.17 (11.31) 0.012
Sex 7,544 <0.001
female 3,396 (45%) 560 (38%) 2,836 (47%)
male 4,148 (55%) 898 (62%) 3,250 (53%)
Race 7,544 <0.001
Black 562 (7.4%) 87 (6.0%) 475 (7.8%)
Other 343 (4.5%) 78 (5.3%) 265 (4.4%)
Unknown 947 (13%) 243 (17%) 704 (12%)
White 5,692 (75%) 1,050 (72%) 4,642 (76%)
BMI 7,544 27.25 (6.32) 28.50 (7.15) 26.95 (6.07) <0.001
ASA Classification 7,544 0.14
5-Moribund 2 (<0.1%) 1 (<0.1%) 1 (<0.1%)
I-II 1,763 (23%) 362 (25%) 1,401 (23%)
III-IV 5,769 (76%) 1,092 (75%) 4,677 (77%)
None assigned 10 (0.1%) 3 (0.2%) 7 (0.1%)
PAN_DUCTSIZE 7,544 <0.001
<3 mm 2,025 (27%) 522 (36%) 1,503 (25%)
>6 mm 910 (12%) 101 (6.9%) 809 (13%)
3-6 mm 2,964 (39%) 499 (34%) 2,465 (41%)
Unknown 1,645 (22%) 336 (23%) 1,309 (22%)
PAN_GLANDTEXT 7,544 <0.001
Hard 2,391 (32%) 205 (14%) 2,186 (36%)
Intermediate 599 (7.9%) 81 (5.6%) 518 (8.5%)
Soft 2,687 (36%) 811 (56%) 1,876 (31%)
Unknown 1,867 (25%) 361 (25%) 1,506 (25%)
AmylaseCutoff300DT 7,355 <0.001
<300 4,741 (64%) 232 (16%) 4,509 (76%)
>300 2,614 (36%) 1,203 (84%) 1,411 (24%)
Unknown 189 23 166
Amylasecutoff5000DT 7,355 <0.001
<5000 6,341 (86%) 713 (50%) 5,628 (95%)
>5000 1,014 (14%) 722 (50%) 292 (4.9%)
Unknown 189 23 166

1 Statistics presented: n (%); Mean (SD)

2 Statistical tests performed: chi-square test of independence; Wilcoxon rank-sum test; Fisher's exact test