Retrospective Study
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©The Author(s) 2020. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Gastroenterol. Apr 7, 2020; 26(13): 1501-1512
Published online Apr 7, 2020. doi: 10.3748/wjg.v26.i13.1501
Table 1 Correlation between gamma-glutamyltransferase to lymphocyte ratio and clinicopathological characteristics in intrahepatic cholangiocarcinoma
Variables Derivation P valueValidation P valueGLR ≤ 33.7 GLR > 33.7 GLR ≤ 33.7 GLR > 33.7 Total patients 107 157 97 166 Age, yr 57.96 (11.48) 57.80 (10.35) 0.902 56.97 (10.69) 56.48 (10.56) 0.716 Male gender, n (%) 42 (39.3) 85 (54.1) 0.024a 38 (39.2) 89 (53.6) 0.030a HBsAg, n (%) 36 (33.6) 37 (23.6) 0.073 31 (32.3) 47 (28.5) 0.575 Hepatolithiasis, n (%) 14 (13.1) 27 (17.2) 0.396 15 (15.5) 32 (19.3) 0.511 Child-Pugh grade B, n (%) 3 (2.8) 8 (5.1) 0.533 2 (2.1) 11 (6.6) 0.141 Ascites, n (%) 6 (5.6) 21 (13.4) 0.061 4 (4.1) 19 (11.4) 0.068 CA-199 < 22, n (%) 38 (36.5) 42 (27.5) 0.005a 29 (31.2) 40 (24.2) 0.043a Tumor size, cm 5.14 (2.29) 6.51 (2.78) < 0.001a 5.40 (2.22) 6.36 (2.97) 0.007a Solitary tumor, n (%) 89 (83.2) 102 (65.0) 0.001a 67 (69.1) 113 (68.1) 0.895 Well tumor differentiation, n (%) 6 (5.6) 4 (2.5) 0.331 5 (5.2) 7 (4.2) 0.767 Macrovascular invasion, n (%) 17 (15.9) 45 (28.7) 0.011a 8 (8.2) 53 (31.9) < 0.001a Microvascular invasion, n (%) 6 (5.6) 23 (14.6) 0.026a 7 (7.2) 17 (10.2) 0.514 Liver capsule invasion, n (%) 67 (62.6) 107 (68.2) 0.362 64 (66.0) 97 (58.4) 0.248 Node-positive, n (%) 16 (15.0) 48 (30.6) 0.005a 18 (18.6) 47 (28.3) 0.107 Perineural invasion, n (%) 9 (8.4) 27 (17.2) 0.044a 8 (8.2) 35 (21.1) 0.009a Cirrhosis, n (%) 27 (25.2) 53 (33.8) 0.174 19 (19.6) 46 (27.7) 0.182 TNM stage, n (%) 0.002a 0.107 IA 23 (21.5) 12 (7.6) 13 (13.4) 15 (9.0) IB 6 (5.6) 12 (7.6) 6 (6.2) 13 (7.8) II 6 (5.6) 13 (8.3) 10 (10.3) 26 (15.7) IIIA 55 (51.4) 72 (45.9) 50 (51.5) 64 (38.6) IIIB 17 (15.9) 48 (30.6) 18 (18.6) 48 (28.9) BCLC stage, n (%) < 0.001a < 0.001a 0 6 (5.6) 9 (5.7) 3 (3.1) 5 (3.0) A 44 (41.1) 25 (15.9) 34 (35.1) 38 (22.9) B 40 (37.4) 78 (49.7) 52 (53.6) 70 (42.2) C 17 (15.9) 45 (28.7) 8 (8.2) 53 (31.9)
Table 2 Univariate analysis in the derivation cohort
Variables Overall survival Recurrence-free survival HR 95%CI P valueHR 95%CI P valueAge 1.002 0.987-1.017 0.819 0.998 0.985-1.011 0.763 Gender, F/M 0.752 0.546-1.035 0.080a 0.846 0.633-1.132 0.262 HBsAg 1.210 0.853-1.717 0.285 1.274 0.924-1.756 0.139 Hepatolithiasis 1.593 1.061-2.393 0.025a 1.176 0.785-1.761 0.433 Child-Pugh grade, A /B 0.614 0.323-1.167 0.136 0.732 0.381-1.367 0.317 Ascites 1.639 1.011-2.658 0.045a 1.532 0.988-2.376 0.056a CA-199 (≥ 22/< 22) 0.953 0.926-0.981 0.001a 1.546 1.259-1.899 < 0.001a Tumor size 1.075 1.012-1.141 0.019a 1.123 1.063-1.187 < 0.001a Tumor number, Multiple/Single 1.655 1.172-2.328 0.004a 1.893 1.388-2.582 < 0.001a Tumor differentiation, Moderate-Poor/Well 1.891 0.699-5.115 0.209 3.277 1.045-10.274 0.042a Macrovascular invasion 1.371 0.953-1.972 0.089a 1.277 0.913-1.787 0.153 Microvascular invasion 1.619 1.029-2.548 0.037a 1.983 1.306-3.012 0.001a Liver capsule invasion 0.815 0.586-1.134 0.225 1.140 0.833-1.561 0.412 Node-positive 2.846 2.030-3.989 < 0.001a 2.484 1.810-3.409 < 0.001a Perineural invasion 1.737 1.129-2.673 0.012a 1.245 0.821-1.887 0.302 Cirrhosis 1.526 1.094-2.130 0.013a 1.182 0.863-1.617 0.297 TNM stage, III/I-II 1.067 0.745-1.529 0.722 1.431 1.010-2.028 0.044a BCLC, B-C/0-A 1.295 0.906-1.850 0.156 1.607 1.150-2.246 0.005a NLR, > 2.62/≤ 2.62 1.701 1.221-2.371 0.002a 1.422 1.057-1.912 0.020a PLR, > 103/≤ 103 1.366 0.983-1.897 0.063a 1.360 1.009-1.833 0.043a GLR, > 33.7/≤ 33.7 2.316 1.617-3.316 < 0.001a 1.931 1.413-2.639 < 0.001a
Table 3 Univariate analysis in the validation cohort
Variables Overall survival Recurrence-free survival HR 95%CI P valueHR 95%CI P valueAge 0.996 0.981-1.011 0.594 0.990 0.976-1.004 0.148 Gender, F/M 0.907 0.667-1.233 0.534 0.920 0.695-1.218 0.560 HBsAg 1.004 0.717-1.405 0.982 1.110 0.819-1.505 0.500 Hepatolithiasis 1.092 0.744-1.602 0.654 0.799 0.551-1.158 0.236 Child-Pugh grade, A /B 0.852 0.435-1.671 0.642 0.751 0.418-1.350 0.339 Ascites 1.440 0.871-2.382 0.155 1.580 1.004-2.487 0.048a CA-199, ≥ 22/< 22 1.744 1.390-2.188 < 0.001a 1.402 1.140-1.722 0.001a Tumor size 1.054 0.997-1.115 0.064a 1.084 1.030-1.141 0.002a Tumor number, Multiple/Single 1.845 1.344-2.531 < 0.001a 1.874 1.397-2.513 < 0.001a Tumor differentiation, Moderate-Poor/Well 13.449 1.881-96.150 0.010 6.053 1.930-18.982 0.002a Macrovascular invasion 1.050 0.730-1.511 0.792 1.009 0.718-1.418 0.959 Microvascular invasion 1.995 1.228-3.242 0.005a 2.023 1.290-3.172 0.002a Liver capsule invasion 1.553 1.118-2.159 0.009a 1.280 0.955-1.716 0.099a Node-positive 2.009 1.438-2.808 < 0.001a 1.525 1.115-2.085 0.008a Perineural invasion 1.366 0.906-2.059 0.136 1.262 0.867-1.838 0.225 Cirrhosis 0.984 0.686-1.412 0.932 1.054 0.762-1.459 0.749 TNM stage, III/I-II 1.774 1.242-2.533 0.002a 1.413 1.035-1.929 0.029 BCLC, B-C/0-A 1.619 1.136-2.308 0.008a 1.849 1.335-2.562 < 0.001a NLR, > 2.62/≤ 2.62 1.649 1.202-2.261 0.002a 1.635 1.226-2.180 0.001a PLR, > 103/≤ 103 1.417 1.036-1.938 0.029a 1.065 0.803-1.414 0.661 GLR, > 33.7/≤ 33.7 1.826 1.300-2.565 0.001a 1.780 1.315-2.408 < 0.001a
Table 4 Multivariate analysis of prognostic factors for overall survival and recurrence-free survival
OS Derivation cohort (n = 264) Validation cohort (n = 263) HR 95%CI P valueHR 95%CI P valueGender, F/M 0.847 0.58-1.216 0.367 - Hepatolithiasis 1.073 0.677-1.699 0.765 - Child-Pugh grade, A /B 0.775 0.38-1.583 0.485 - Ascites 0.758 0.428-1.339 0.340 0.640 0.376-1.090 0.100 CA-199, ≥ 22/< 22 1.731 1.331-2.252 < 0.001a 1.612 1.252-2.075 < 0.001a Tumor size 1.053 0.967-1.146 0.234 0.931 0.857-1.011 0.088 Tumor number, Multiple/Single 1.662 1.086-2.543 0.019a 1.677 1.189-2.366 0.003a Tumor differentiation, Moderate-Poor/Well - 7.927 1.083-58.02 0.042a Macrovascular invasion 1.199 0.781-1.843 0.407 - Microvascular invasion 1.082 0.635-1.842 0.773 1.349 0.801-2.274 0.261 Liver capsule invasion - 1.036 0.533-2.013 0.917 Node- positive 2.038 1.365-3.042 < 0.001a 1.269 0.835-1.928 0.265 Perineural invasion 1.252 0.773-1.116 0.169 0.973 0.591-1.603 0.914 Cirrhosis 1.589 1.074-2.351 0.020a - TNM stage, III/I-II - 1.294 0.607-2.761 0.505 BCLC, B-C/0-A 0.627 0.364-1.078 0.091 1.307 0.813-2.101 0.269 NLR, > 2.62/≤ 2.62 1.357 0.912-2.017 0.132 1.287 0.897-1.846 0.170 PLR, > 103/≤ 103 1.141 0.776-1.679 0.502 1.094 0.778-1.539 0.604 GLR, > 33.7/≤ 33.7 1.620 1.066-2.462 0.024a 1.466 1.033-2.142 0.048a RFS Age - 0.991 0.976-1.006 0.236 HBsAg 1.367 0.974-1.919 0.071 - Ascites 0.763 0.473-1.230 0.266 0.621 0.382-1.010 0.055 CA-199, ≥ 22/< 22 1.406 1.128-1.752 0.002a 1.319 1.050-1.656 0.017a Tumor size 1.073 0.994-1.158 0.072 0.975 0.906-1.050 0.501 Tumor number, Multiple/Single 1.434 0.998-2.060 0.051 1.613 1.172-2.219 0.003a Tumor differentiation, Moderate-Poor/Well 2.068 0.635-6.734 0.228 3.617 1.114-11.741 0.032a Macrovascular invasion 1.149 0.785-1.682 0.475 - Microvascular invasion 1.643 1.031-2.618 0.037a 1.607 0.986-2.618 0.057 Liver capsule invasion - 0.778 0.428-1.417 0.413 Node-positive 1.859 1.272-2.716 0.001a 0.972 0.664-1.421 0.882 TNM stage, III/I-II 0.892 0.559-1.328 0.572 1.524 0.778-2.988 0.220 BCLC, B-C/0-A 0.784 0.480-1.280 0.331 1.339 0.859-2.087 0.198 NLR, > 2.62/≤ 2.62 1.128 0.811-1.571 0.474 1.352 0.967-1.891 0.077 PLR, > 103/≤ 103 1.125 0.809-1.565 0.483 0.805 0.589-1.100 0.173 GLR, > 33.7/≤ 33.7 1.471 1.029-2.103 0.034a 1.480 1.057-2.070 0.022a