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. 2023 Aug 27;15(8):1652–1662. doi: 10.4240/wjgs.v15.i8.1652

Table 2.

Operative procedures between two drain types before and after matching cohorts

Operative procedure Before matching
After matching
PG (n = 146)
NPI (n = 50)
P value
PG (n = 44)
NPI (n = 44)
P value
Pancreas injury-related, n (%)
    Peripancreatic drainage alone 61 (41.8) 22 (44.0) 0.784 19 (43.2) 19 (43.2) 1.000
    Distal pancreatectomy 37 (25.3) 10 (20.0) 0.445 10 (22.7) 8 (18.2) 0.597
    Distal pancreatectomy + splenectomy 22 (15.1) 9 (18.0) 0.624 6 (13.6) 8 (18.2) 0.560
    Pancreaticojejunostomy 21 (14.4) 7 (14.0) 0.947 8 (18.2) 7 (15.9) 0.777
    Whipple 5 (3.4) 2 (4.0) 0.850 1 (2.3) 2 (4.5) 1.000
Other intra-abdominal organ injury-related, n (%)
    Gastric or duodenal 38 (26.0) 6 (12.0) 0.040 5 (11.4) 5 (11.4) 1.000
    Jejunal or ileal 25 (17.1) 9 (18.0) 0.888 9 (20.5) 9 (20.5) 1.000
    Colorectal 30 (20.5) 11 (22.0) 0.828 10 (22.7) 10 (22.7) 1.000
    Parenchymal organ 58 (39.7) 12 (24.0) 0.045 11 (25.0) 10 (22.7) 0.803
    Vascular 19 (13.0) 13 (26.0) 0.032 9 (20.5) 8 (18.2) 0.787

PG: Passive gravity; NPI: Negative pressure irrigation.