Table 3.
Comparison between baseline characteristics of MILR in 2118 Childs A vs 245 Childs B cirrhosis
| Entire unmatched cohort | 1:1 PSM (nearest neighbour matching) | 1:1 CEM | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
|
| ||||||||||
| All (N = 2363) | Childs A (N =2118) | Childs B (N = 245) | P-value | Childs A (N = 215) | Childs B (N = 215) | P-value (paried) | Childs A (N = 191) | Childs B (N = 191) | P-value (paired) | |
|
| ||||||||||
| Median age (IQR), yrs | 63.00 [55.00, 71.00] | 63.00 [55.00, 71.00] | 61.00 [51.00, 69.00] | 0.002 | 59.00 [52.10, 68.00] | 61.00 [51.00, 70.00] | 0.791 | 61.00 [53.00, 69.00] | 60.00 [51.00, 68.95] | 0.068 |
|
| ||||||||||
| Male sex, n (%) | 1760 (74.5) | 1567 (74.0) | 193 (78.8) | 0.121 | 172 (80.0) | 171 (79.5) | 1.000 | 156 (81.7) | 156 (81.7) | NA |
|
| ||||||||||
| BMI | 24.70 [22.28, 27.50] | 24.70 [22.24, 27.52] | 24.94 [22.48, 27.33] | 0.873 | 24.16 [22.05, 26.65] | 24.77 [22.43, 27.12] | 0.275 | 24.72 [23.01, 27.19] | 24.40 [22.15, 26.97] | 0.113 |
|
| ||||||||||
| Robotic, n (%) | 260 (11.0) | 221 (10.4) | 39 (15.9) | 36 (16.7) | 33 (15.3) | 23 (12.0) | 23 (12.0) | |||
| Laparoscopic, n (%) | 2103 (89.0) | 1897 (89.6) | 206 (84.1) | 0.013 | 179 (83.3) | 182 (84.7) | 0.787 | 168 (88.0) | 168 (88.0) | NA |
|
| ||||||||||
| Previous abdominal surgery, n (%) | 440 (19.5) | 399 (19.8) | 41 (17.2) | 0.385 | 33 (15.3) | 38 (17.7) | 0.603 | 27 (14.1) | 27 (14.1) | NA |
|
| ||||||||||
| Year of surgery, n (%) | ||||||||||
| 2004–2009 | 148 (6.3) | 132 (6.2) | 16 (6.5) | 14 (6.5) | 14 (6.5) | 11 (5.8) | 11 (5.8) | |||
| 2010–2015 | 702 (29.7) | 617 (29.1) | 85 (34.7) | 71 (33.0) | 70 (32.6) | 65 (34.0) | 65 (34.0) | |||
| 2016–2021 | 1513 (64.0) | 1369 (64.6) | 144 (58.8) | 0.174 | 130 (60.5) | 131 (60.9) | 0.873 | 115 (60.2) | 115 (60.2) | NA |
|
| ||||||||||
| ASA score, n (%) | ||||||||||
| 1/2 | 1621 (68.7) | 1454 (68.7) | 167 (68.2) | 138 (64.2) | 147 (68.4) | 135 (70.7) | 135 (70.7) | |||
| 3/4 | 740 (31.3) | 662 (31.3) | 78 (31.8) | 0.918 | 77 (35.8) | 68 (31.6) | 0.342 | 56 (29.3) | 56 (29.3) | NA |
|
| ||||||||||
| Tumor type, n (%) | ||||||||||
| HCC | 2225 (94.2) | 1989 (94.0) | 236 (96.3) | 213 (99.1) | 213 (99.1) | 191 (100.0) | 191 (100.0) | |||
| ICC/ cholangiohepatoma | 137 (5.8) | 128 (6.0) | 9 (3.7) | 0.174 | 2 (0.9) | 2 (0.9) | 1.000 | 0 (0.0) | 0 (0.0) | NA |
|
| ||||||||||
| Median tumor size, mm (IQR) | 26.00 [20.00, 38.00] | 26.00 [20.00, 37.00] | 30.00 [20.00, 45.00] | 0.026 | 28.00 [20.00, 45.00] | 30.00 [20.00, 45.00] | 0.839 | 30.00 [20.00, 43.50] | 30.00 [20.00, 45.00] | 0.259 |
|
| ||||||||||
| Multiple tumors, n (%) | 230 (9.7) | 206 (9.7) | 24 (9.8) | 1.000 | 15 (7.0) | 17 (7.9) | 0.855 | 5 (2.6) | 5 (2.6) | NA |
|
| ||||||||||
| Wedge/ partial liver resection, n (%) | 1444 (61.1) | 1319 (62.3) | 125 (51.0) | 99 (46.0) | 116 (54.0) | 97 (50.8) | 97 (50.8) | |||
| Segmentectomy, n (%) | 919 (38.9) | 799 (37.7) | 120 (49.0) | 0.001 | 116 (54.0) | 99 (46.0) | 0.068 | 94 (49.2) | 94 (49.2) | NA |
|
| ||||||||||
| Concomitant minor surgery excluding cholecystectomy, n (%) | 100 (4.2) | 86 (4.1) | 14 (5.7) | 0.289 | 10 (4.7) | 12 (5.6) | 0.823 | 6 (3.1) | 6 (3.1) | NA |
|
| ||||||||||
| Hilar lymph node dissection, n (%) | 10 (0.4) | 9 (0.4) | 1 (0.4) | 1.000 | 2 (0.9) | 1 (0.5) | 1.000 | 0 (0.0) | 0 (0.0) | NA |
|
| ||||||||||
| Median Iwate difficulty score excluding Child score, [IQR] (range) | 4.00 [2.00, 6.00] (1, 9) | 4.00 [2.00, 6.00] (1, 9) | 4.00 [2.00, 6.00] (1, 8) | 0.046 | 4.00 [3.00, 6.00] (1, 8) | 4.00 [2.00, 6.00] (1, 8) | 0.293 | 4.00 [3.00, 6.00] (1, 8) | 4.00 [3.00, 6.00] (1, 8) | NA |
|
| ||||||||||
| Iwate difficulty exclude Child score, n (%) | ||||||||||
| Low | 1157 (49.0) | 1055 (49.8) | 102 (41.6) | 87 (40.5) | 94 (43.7) | 80 (41.9) | 80 (41.9) | |||
| Intermediate | 859 (36.4) | 760 (35.9) | 99 (40.4) | 79 (36.7) | 81 (37.7) | 71 (37.2) | 71 (37.2) | |||
| High | 346 (14.6) | 302 (14.3) | 44 (18.0) | 0.043 | 49 (22.8) | 40 (18.6) | 0.507 | 40 (20.9) | 40 (20.9) | NA |