Table 1.
Comparison between baseline characteristics of MILR if the anterolateral segments in Childs A cirrhosis v non-cirrhosis
| Entire unmatched cohort | 1:1 PSM (nearest neighbour matching) | 1:1 CEM | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
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| All (N = 3430) | Child A Cirrhosis (N = 2118) | Non-cirrhosis (N = 1312) | P-value | Child A Cirrhosis (N = 991) | Non-cirrhosis (N = 991) | P-value (paired) | Child A Cirrhosis (N = 518) | Non-cirrhosis (N = 518) | P-value (paired) | |
|
| ||||||||||
| Median age (IQR), yrs | 64.00 [55.00, 72.00] | 63.00 [55.00, 71.00] | 64.00 [55.00, 73.00] | 0.122 | 63.00 [55.00, 70.79] | 64.00 [55.00, 72.00] | 0.445 | 64.00 [56.00, 71.00] | 64.00 [56.00, 71.00] | 0.878 |
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| Male sex, n (%) | 2468 (72.0) | 1567 (74.0) | 901 (68.7) | 0.001 | 721 (72.8) | 717 (72.4) | 0.880 | 424 (81.9) | 424 (81.9) | NA |
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| ||||||||||
| Median BMI (IQR) | 24.60 [22.21, 27.44] | 24.70 [22.24, 27.52] | 24.41 [22.20, 27.25] | 0.076 | 24.60 [22.32, 27.62] | 24.30 [22.03, 26.99] | 0.072 | 24.60 [22.21, 27.00] | 24.20 [22.10, 26.82] | 0.338 |
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| ||||||||||
| Robotic, n (%) | 400 (11.7) | 221 (10.4) | 179 (13.6) | 138 (13.9) | 128 (12.9) | 24 (4.6) | 24 (4.6) | |||
| Laparoscopic, n (%) | 3030 (88.3) | 1897 (89.6) | 1133 (86.4) | 0.005 | 853 (86.1) | 863 (87.1) | 0.555 | 494 (95.4) | 494 (95.4) | NA |
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| Previous abdominal surgery, n (%) | 670 (20.2) | 399 (19.8) | 271 (20.8) | 0.508 | 194 (19.6) | 202 (20.4) | 0.694 | 63 (12.2) | 63 (12.2) | NA |
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| Year of surgery, n (%) | ||||||||||
| 2004–2009 | 193 (5.6) | 132 (6.2) | 61 (4.6) | 61 (6.2) | 53 (5.3) | 19 (3.7) | 19 (3.7) | |||
| 2010–2015 | 968 (28.2) | 617 (29.1) | 351 (26.8) | 279 (28.2) | 279 (28.2) | 127 (24.5) | 127 (24.5) | |||
| 2016–2021 | 2269 (66.2) | 1369 (64.6) | 900 (68.6) | 0.028 | 651 (65.7) | 659 (66.5) | 0.325 | 372 (71.8) | 372 (71.8) | NA |
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| ||||||||||
| ASA score, n (%) | ||||||||||
| 1/2 | 2356 (68.7) | 1454 (68.7) | 902 (68.8) | 688 (69.4) | 682 (68.8) | 391 (75.5) | 391 (75.5) | |||
| 3/4 | 1071 (31.3) | 662 (31.3) | 409 (31.2) | 0.987 | 303 (30.6) | 309 (31.2) | 0.807 | 127 (24.5) | 127 (24.5) | NA |
|
| ||||||||||
| Tumor type, n (%) | ||||||||||
| HCC | 3026 (88.4) | 1989 (94.0) | 1037 (79.5) | 926 (93.4) | 923 (93.1) | 514 (99.2) | 514 (99.2) | |||
| ICC/ cholangiohepatoma | 396 (11.6) | 128 (6.0) | 268 (20.5) | <0.001 | 65 (6.6) | 68 (6.9) | 0.815 | 4 (0.8) | 4 (0.8) | NA |
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| ||||||||||
| Median tumor size, mm (IQR) | 29.00 [20.00, 40.00] | 26.00 [20.00, 37.00] | 30.00 [21.00, 45.00] | <0.001 | 30.00 [20.00, 40.00] | 30.00 [20.00, 40.00] | 0.564 | 25.00 [20.00, 33.00] | 25.00 [19.00, 35.00] | 0.417 |
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| ||||||||||
| Multiple tumors, n (%) | 302 (8.8) | 206 (9.7) | 96 (7.3) | 0.019 | 68 (6.9) | 75 (7.6) | 0.597 | 9 (1.7) | 9 (1.7) | NA |
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| ||||||||||
| Wedge/partial, n (%) | 2004 (58.4) | 1319 (62.3) | 685 (52.2) | 554 (55.9) | 558 (56.3) | 314 (60.6) | 314 (60.6) | |||
| Segmentectomy, n (%) | 1426 (41.6) | 799 (37.7) | 627 (47.8) | <0.001 | 437 (44.1) | 433 (43.7) | 0.888 | 204 (39.4) | 204 (39.4) | NA |
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| Concomitant minor surgery excluding cholecystectomy, n (%) | 113 (3.3) | 86 (4.1) | 27 (2.1) | 0.002 | 22 (2.2) | 21 (2.1) | 1.000 | 2 (0.4) | 2 (0.4) | NA |
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| ||||||||||
| Hilar lymph node dissection, n (%) | 112 (3.3) | 9 (0.4) | 103 (7.9) | <0.001 | 9 (0.9) | 13 (1.3) | 0.453 | 1 (0.2) | 1 (0.2) | NA |
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| ||||||||||
| Median Iwate difficulty score, [IQR](range) | 4.00 [3.00, 6.00] (1, 9) | 4.00 [2.00, 6.00] (1, 9) | 4.00 [3.00, 7.00] (1, 9) | <0.001 | 4.00 [3.00, 6.00] (1, 9) | 4.00 [3.00, 6.00] (1, 9) | 0.870 | 4.00 [3.00, 6.00] (1, 8) | 4.00 [3.00, 6.00] (1, 8) | NA |
|
| ||||||||||
| Iwate difficulty, n (%) | ||||||||||
| Low | 1533 (44.7) | 1053 (49.7) | 480 (36.6) | 418 (42.2) | 406 (41.0) | 249 (48.1) | 249 (48.1) | |||
| Intermediate | 1253 (36.6) | 758 (35.8) | 495 (37.8) | 364 (36.7) | 383 (38.6) | 182 (35.1) | 182 (35.1) | |||
| High | 642 (18.7) | 306 (14.5) | 336 (25.6) | <0.001 | 209 (21.1) | 202 (20.4) | 0.856 | 87 (16.8) | 87 (16.8) | NA |