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Retrospective Study
Copyright: ©Author(s) 2026.
World J Gastroenterol. May 21, 2026; 32(19): 116513
Published online May 21, 2026. doi: 10.3748/wjg.v32.i19.116513
Table 2 Cohort balancing characteristics of patients before and after propensity score matching
Perioperative vs postoperative treatment
Before PSM
Statistical volume
P value
After PSM (3:1)
Statistical volume
P value
Perioperative treatment (n = 532)
Postoperative treatment (n = 110)
Perioperative treatment (n = 330)
Postoperative treatment (n = 110)
Age, years, median (IQR)54.0 (47.0-62.0)54.0 (47.0-62.8)W = 28311.00.59254.0 (47.0-62.0)54.0 (47.0-62.8)W = 17514.50.582
Male sex280 (52.6)70 (63.6)χ2 = 4.4520.035216 (65.5)70 (63.6)χ2 = 0.1200.729
ALT, median (IQR)24.0 (17.0-33.0)31.00 (20.3-35.0)W = 23603.50.00131.0 (20.0-36.0)31.0 (20.3-35.0)W = 18114.50.976
Extent of resectionχ2 = 0.0680.794χ2 = 0.0030.953
Major resection351 (66.0)74 (67.3)223 (67.6)74 (67.3)
Minor resection181 (34.0)36 (32.7)107 (32.4)36 (32.7)
Prophylaxis vs no prophylaxisBefore PSMStatistical volumeP valueAfter PSM (1:1)Statistical volumeP value
Prophylaxis (n = 876)No prophylaxis (n = 835)Prophylaxis (n = 680)No prophylaxis (n = 680)
Age, years, median (IQR)53.5 (46.0-62.0)54.0 (46.0-62.0)W = 359007.50.51054.0 (46.8-62.0)53.0 (45.0-62.0)W = 233831.00.716
Male sex330 (37.7)451 (54.0)χ2 = 46.01< 0.001319 (46.9)321 (47.2)χ2 = 0.0120.913
ALT, median (IQR)23.0 (16.0-33.0)24.00 (16.0-33.0)W = 356161.50.34923.0 (15.0-33.0)24.0 (16.0-33.0)W = 228588.50.718
Extent of resectionχ2 = 33.227< 0.001χ2 = 1.1960.274
Major resection423 (48.3)519 (62.2)373 (54.9)393 (57.8)
Minor resection453 (51.7)316 (37.8)307 (45.2)287 (42.2)
Treatment with magnesium isoglycyrrhizinate plus other liver protectants vs other liver protectants onlyBefore PSMStatistical volumeP valueAfter PSM (1:3)Statistical volumeP value
MgIG plus other liver protectants (n = 110)Other liver protectants (n = 536)MgIG plus other liver protectants (n = 110)Other liver protectants (n = 330)
Age, years, median (IQR)54.0 (47.0-62.8)54.0 (47.0-62.0)W = 28753.00.68454.0 (47.0-62.8)54.0 (48.0-62.0)W = 17948.00.861
Male sex70 (63.6)342 (63.8)χ2 = 0.0010.97370 (63.6)192 (58.2)χ2 = 1.0190.313
ALT, median (IQR)204.5 (141.3-428.3)216.5 (116.8-384.0)W = 28763.50.688W = 17186.00.404
Extent of resectionχ2 = 1.2640.261χ2 = 0.1650.685
Major resection74 (67.3)389 (72.6)74 (67.3)215 (65.2)
Minor resection36 (32.7)147 (27.4)36 (32.7)115 (34.9)


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