Research Article
A Nomogram Predicting Overall and Cancer-Specific Survival of Patients with Primary Bone Lymphoma: A Large Population-Based Study
Table 1
Patient demographics and pathological characteristics.
| | Characteristics | Training cohort
(%) | Validation cohort
(%) | Total
(%) |
| | Age | | | | | <61 | 257 (48.6) | 117 (44.3) | 374 (47.2) | | 61-75 | 167 (31.6) | 91 (34.5) | 258 (32.5) | | >75 | 105 (19.8) | 56 (21.2) | 161 (20.3) | | Gender | | | | | Female | 295 (55.8) | 143 (54.2) | 438 (55.2) | | Male | 234 (44.2) | 121 (45.8) | 355 (44.8) | | Race | | | | | White | 456 (86.2) | 234 (88.6) | 690 (87.0) | | Black | 43 (8.1) | 13 (4.9) | 56 (7.1) | | Other | 30 (5.7) | 17 (6.4) | 47 (5.9) | | Ethnicity | | | | | Non-Spanish-Hispanic-Latino | 454 (85.8) | 238 (89.8) | 691 (87.1) | | Spanish-Hispanic-Latino | 75 (14.2) | 27 (10.2) | 102 (12.9) | | Tumor site | | | | | Axial | 284 (53.7) | 154 (58.3) | 438 (55.2) | | Appendix | 245 (46.3) | 110 (41.7) | 355 (44.8) | | Stage | | | | | Localized | 296 (56.0) | 147 (55.7) | 443 (55.9) | | Regional | 74 (14.0) | 45 (17.0) | 119 (15.0) | | Distant | 159 (30.1) | 72 (27.3) | 231 (29.1) | | Histology | | | | | Diffuse large B-cell lymphoma | 454 (85.8) | 220 (83.3) | 674 (85.0) | | Malignant lymphoma | 9 (1.7) | 5 (1.9) | 14 (1.8) | | Non-Hodgkin lymphoma | 62 (11.7) | 35 (13.3) | 97 (12.2) | | Malignant lymphoma, small B lymphocytic | 1 (0.2) | 1 (0.4) | 2 (0.3) | | Lymphoplasmacytic lymphoma | 2 (0.4) | 3 (1.1) | 5 (0.6) | | Malignant lymphoma, large B, diffuse | 1 (0.2) | 0 (0.0) | 1 (0.1) | | Chemotherapy | | | | | No | 88 (16.6) | 49 (18.6) | 137 (17.3) | | Yes | 441 (83.4) | 215 (81.4) | 656 (82.7) | | Radiation | | | | | No | 251 (47.4) | 97 (36.7) | 348 (43.9) | | Yes | 278 (52.6) | 167 (63.3) | 445 (56.1) |
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