Table 1 Baseline characteristics
Characteristics | Before PSM | After PSM | ||||
|---|---|---|---|---|---|---|
Optimized group | Traditional group | p | Optimized group | Traditional group | p | |
n = 42 | n = 127 | n = 42 | n = 84 | |||
Age, median[IQR], y | 60.00(54.00–66.00) | 63.00(55.50–67.50) | 0.141 | 60.00(54.00–66.00) | 61.00(54.50–66.00) | 0.730 |
Sex, n (%) | 0.751 | 0.798 | ||||
Male | 24(57.1) | 69(54.3) | 24(57.1) | 50(59.5) | ||
Female | 18(42.9) | 58(45.7) | 18(42.9) | 34(40.5) | ||
BMI, median[IQR] | 22.60(21.23–24.84) | 23.83(21.68–26.04) | 0.140 | 22.60(21.23–24.84) | 23.48(21.23–26.19) | 0.848 |
ASA class, n (%) | 0.345 | 0.557 | ||||
I | 8(19.0) | 16(12.6) | 8(19.0) | 10(11.9) | ||
II | 19(45.2) | 73(57.5) | 19(45.2) | 41(48.8) | ||
III | 15(35.7) | 38(29.9) | 15(35.7) | 33(39.3) | ||
Comorbidity, n (%) | ||||||
Diabetes mellitus | 6(14.3) | 22(17.3) | 0.646 | 6(14.3) | 11(13.1) | 1.000 |
Hypertension | 14(33.3) | 44(34.6) | 0.877 | 14(33.3) | 27(27.3) | 0.893 |
Others | 5(11.9) | 10(7.9) | 0.303 | 5(11.9) | 9(9.3) | 1.000 |
Previous abdominal surgery, n (%) | 3(7.1) | 17(13.4) | 0.213 | 3(7.1) | 8(9.5) | 0.750 |
Child–Pugh grade, n (%) | 0.297 | 0.664 | ||||
A | 41(97.6) | 119(93.7) | 41(97.6) | 80(95.2) | ||
B | 1(2.4) | 8(6.3) | 1(2.4) | 4(3.3) | ||
CEA, median[IQR], U/L | 5.15(2.52–14.85) | 4.34(2.53–11.20) | 0.164 | 5.15(2.52–14.85) | 4.34(2.54–11.20) | 0.550 |
CA199, median[IQR], U/L | 192.83(78.38–500.14) | 95.30(29.74–475.00) | 0.647 | 192.83(78.38–500.14) | 102.95(32.04–578.20) | 0.737 |
ALB, median[IQR], U/L | 41.20(37.00–44.00) | 43.00(39.00–46.00) | 0.177 | 41.20(37.00–44.00) | 42.00(38.25–45.60) | 0.548 |
ALT, median[IQR], U/L | 50.50(41.00–95.00) | 42.00(24.00–72.00) | 0.016 | 50.50(41.00–95.00) | 47.50(28.00–76.00) | 0.134 |
AST, median[IQR], U/L | 36(23.00–62.00) | 43.00(28.00–56.00) | 0.327 | 36(23.00–62.00) | 41.00(27.00–56.00) | 0.469 |
T.Bil, median[IQR], U/L | 17.00(14.30–24.60) | 18.8(14.95–26.75) | 0.791 | 17.00(14.30–24.60) | 17.85(13.70–24.10) | 0.770 |
Tumor location, n (%) | 0.900 | 0.894 | ||||
Left side | 28(66.7) | 86(50.9) | 28(66.7) | 55(65.5) | ||
Right side | 14(33.3) | 41(32.3) | 14(33.3) | 29(34.5) | ||
Tumor number, n (%) | 0.395 | 1.000 | ||||
Single | 39(92.9) | 121(95.3) | 39(92.9) | 79(94.0) | ||
Multiple | 3(7.1) | 6(4.7) | 3(7.1) | 5(6.0) | ||
T stage, n (%) | 0.300 | 0.534 | ||||
T1/T2 | 32(76.2) | 86(67.7) | 32(76.2) | 68(81.0) | ||
T3/T4 | 10(23.8) | 41(32.3) | 10(23.8) | 16(19.0) | ||
Macrovascular invasion, n (%) | 9(21.4) | 23(18.1) | 0.634 | 9(21.4) | 16(19.0) | 0.752 |