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Table 2 Univariate analysis for the influence of different cutoffs of tumor size on CSS in perihilar cholangiocarcinoma

From: Development and external validation of a nomogram for predicting the effect of tumor size on survival of patients with perihilar cholangiocarcinoma

Cutoff No. 5-year CSS (%) Difference of CSS (%) Log-rank χ2 P value Median of CSS (Months) Difference of Median (Months) HR
< 18 71 47.9 23.2 7.407 0.006 41 16 1.705
≥18 292 24.7     25   
< 19 85 42.6 17.7 9.443 0.002 40 16 1.737
≥19 278 24.9     24   
< 20 88 43.5 19.1 11.37 0.001 41 17 1.83
≥20 275 24.4     24   
< 21 122 37.9 13.4 9.716 0.002 38 15 1.617
≥21 241 24.5     23   
< 22 130 37.3 13.1 9.474 0.002 38 15 1.589
≥22 233 24.2     23   
< 23 143 36.4 12.5 10.119 0.001 35 12 1.59
≥23 220 23.9     23   
< 24 152 36.9 13.8 11.094 0.001 35 13 1.614
≥24 211 23.1     22   
< 25 162 36.2 13.1 9.885 0.002 35 12 1.561
≥25 201 23.1     23   
< 26 187 33.9 10 7.067 0.008 33 10 1.477
≥26 176 23.9     23   
< 27 189 35.2 12.8 9.061 0.003 35 12 1.518
≥27 174 22.4     23   
< 28 195 34.9 12.5 9.97 0.002 35 13 1.548
≥28 168 22.4     22   
< 29 200 35.3 13.4 9.969 0.002 33 11 1.547
≥29 163 21.9     22   
< 30 202 34.9 12.7 8.494 0.004 33 11 1.497
≥30 161 22.2     22   
< 31 236 33.6 12.9 8.859 0.003 32 10 1.52
≥31 127 20.7     22   
< 32 240 33.9 14.3 9.037 0.003 32 10 1.529
≥32 123 19.6     22   
< 33 246 35.1 18.5 13.726 0 32 14 1.687
≥33 117 16.6     18   
< 34 248 35.8 20.4 16.741 0 32 14 1.78
≥34 115 15.4     18   
< 35 248 35.8 20.4 16.741 0 32 14 1.78
≥35 115 15.4     18   
< 36 264 34.2 19 13.681 0 32 14 1.715
≥36 99 15.2     18   
< 37 213 35.1 13.6 7.73 0.005 32 9 1.469
≥37 150 21.5     22.5   
< 38 214 34.9 13.2 7.263 0.007 24.8 2.3 1.452
≥38 149 21.7     22.5   
< 39 217 34.4 12.3 5.362 0.021 24.6 1.7 1.379
≥39 146 22.1     22.9   
< 40 277 33 16.4 7.667 0.006 24.9 4.4 1.527
≥40 86 16.6     20.5