From: Diagnostic and prognostic nomograms for bone metastasis in hepatocellular carcinoma
 | Training set(6335) | Validation set(2712) | χ2 | P |
---|---|---|---|---|
Age | Â | Â | 0.053 | 0.818 |
 <65 | 3534 (55.8%) | 1520 (56.0%) |  |  |
  ≥ 65 | 2801 (44.2) | 1192 (44.0%) |  |  |
Sex | Â | Â | 7.001 | 0.008 |
 Male | 4813 (76.0%) | 2130 (78.5%) |  |  |
 Female | 1522 (24.0%) | 582 (21.5%) |  |  |
Race | Â | Â | 1.314 | 0.518 |
 African-American | 885(14.0%) | 403(14.9%) |  |  |
 White | 4230(66.8%) | 1799(66.3%) |  |  |
 Other | 1220(19.3%) | 510(18.8%) |  |  |
Grade | Â | Â | 0.177 | 0. 674 |
 G1–2 | 4915(77.6%) | 2115(71.3%) |  |  |
 G3–4 | 1420(22.4%) | 597(28.7%) |  |  |
T stage | Â | Â | 1.312 | 0 .252 |
 T1–2 | 4590 (72.5) | 1933(71.9%) |  |  |
 T3–4 | 1745(27.5%) | 779 (28.1%) |  |  |
N stage | Â | Â | 0.255 | 0.614 |
 N0 | 5896(93.1) | 2532 (93.4%) |  |  |
 N1 | 439(6.9%) | 180 (6.6%) |  |  |
Bone metastasis | Â | Â | 2.303 | 0.129 |
 No | 6183(97.6%) | 2632(97.1%) |  |  |
 Yes | 152(2.4%) | 80(2.9%) |  |  |