Variables | Total cohort | Internal test cohort | External validation cohort | p |
---|---|---|---|---|
 | (n = 1412) | (n = 420) | (n = 307) |  |
Sex (%) | Â | Â | Â | 0.776 |
 Male | 894(63.3) | 258(61.4) | 192(62.5) |  |
 Female | 518(36.7) | 162(38.6) | 115(37.5) |  |
 Age (mean (SD)) | 59.45(11.38) | 58.90(11.22) | 61.16(11.58) | 0.023 |
 BMI (mean (SD)) | 21.02(3.19) | 21.27(3.31) | 20.15(2.84) |  < 0.001 |
Tumor stage (%) |  |  |  |  < 0.001 |
 I | 83(5.9) | 25(6.0) | 6(2.0) |  |
 II | 232(16.4) | 59(14.0) | 26(8.5) |  |
 III | 416(29.5) | 128(30.5) | 83(27.0) |  |
 IV | 681(48.2) | 208(49.5) | 192(62.5) |  |
Tumor types (%) | Â | Â | Â | 0.005 |
 Lung cancer | 382(27.1) | 111(26.4) | 73(23.8) |  |
 Gastric cancer | 314(22.2) | 79(18.8) | 72(23.5) |  |
 Other digestive cancers | 119(8.4) | 33(7.9) | 31(10.1) |  |
 Esophageal cancer | 129(9.1) | 44(10.5) | 23(7.5) |  |
 Colorectal cancer | 277(19.6) | 79(18.8) | 67(21.8) |  |
 Breast cancer | 46(3.3) | 19(4.5) | 5(1.6) |  |
 Female reproductive cancer | 49(3.5) | 21(5.0) | 11(3.6) |  |
 Urological cancer | 29(2.1) | 14(3.3) | 3(1.0) |  |
 Nasopharyngeal cancer | 34(2.4) | 9(2.1) | 2(0.7) |  |
 Other cancer | 33(2.3) | 11(2.6) | 20(6.5) |  |
 Surgery, yes (%) | 684(48.4) | 217(51.7) | 167(54.4) | 0.122 |
 Radiotherapy, yes (%) | 136(9.6) | 44(10.5) | 36(11.7) | 0.522 |
 Chemotherapy, yes (%) | 801(56.7) | 242(57.6) | 195(63.5) | 0.091 |
 Tch, mmol/L (mean (SD)) | 4.44(1.16) | 4.43(1.15) | 4.37(1.17) | 0.651 |
 TG (mean (SD)) | 1.33(0.83) | 1.37(1.01) | 1.28(0.73) | 0.355 |
 TyG (mean (SD)) | 3.82(0.28) | 3.83(0.29) | 3.86(0.29) | 0.137 |
 CRP (mean (SD)) | 25.10(41.99) | 26.11(42.00) | 25.01(37.09) | 0.901 |
 CTI (mean (SD)) | 4.68(0.72) | 4.72(0.72) | 4.69(0.77) | 0.62 |
 Glucose (mean (SD)) | 5.66(1.75) | 5.74(2.04) | 6.31(2.15) |  < 0.001 |
 Smoking, yes (%) | 711(50.4) | 205(48.8) | 123(40.1) | 0.005 |
 Drinking, yes (%) | 353(25.0) | 112(26.7) | 88(28.7) | 0.378 |
 Diabetes, yes (%) | 139(9.8) | 48(11.4) | 27(8.8) | 0.476 |
 Hypertension, yes (%) | 255(18.1) | 79(18.8) | 83(27.0) | 0.001 |
 CHD, yes (%) | 66(4.7) | 16(3.8) | 6(2.0) | 0.088 |
 KPS (mean (SD)) | 82.83(14.77) | 83.52(13.87) | 74.40(15.16) |  < 0.001 |
 QC30 (mean (SD)) | 50.38(13.50) | 50.09(13.61) | 57.26(16.41) |  < 0.001 |
ECOG PS (%) |  |  |  |  < 0.001 |
  < 2 | 1234 (87.4) | 370 (88.1) | 200 (65.1) |  |
  ≥ 2 | 178 (12.6) | 50 (11.9) | 107 (34.9) |  |
PGSGA (%) | Â | Â | Â | 0.682 |
 Well-nourished | 55 (3.9) | 19 (4.5) | 10 (3.3) |  |
 Malnutrition | 1357 (96.1) | 401 (95.5) | 297 (96.7) |  |
 Nutrition intervention, yes (%) | 332 (23.5) | 99 (23.6) | 185 (60.3) |  < 0.001 |
 TSF (mean (SD)) | 13.53 (6.82) | 13.57 (7.11) | 20.54 (15.73) |  < 0.001 |