Research Article
Benefits of Dynamic Nomogram Models for Elderly Diffuse Large B-Cell Lymphoma Patients’ Early Death Prediction and Clinical Application
Table 1
Clinicopathological characteristics of patients in the SEER database and external cohort.
| | Variable | SEER | External validation |
| | | 15242 | 152 |
| | Sex (%) | Male | 7485 (49.1) | 77 (50.7) | | Female | 7757 (50.9) | 75 (49.3) |
| | Race (%) | White | 13122 (86.1) | NA | | Black | 658 (4.3) | NA | | AI/AN | 75 (0.5) | NA | | API | 1387 (9.1) | NA |
| | Marital status (%) | Married | 8139 (53.4) | 87 (57.2) | | Unmarried | 7103 (46.6) | 65 (42.8) |
| | Median household income (%) | <$40,000 | 540 (3.5) | NA | | $40,000–$54,999 | 2892 (19.0) | NA | | $55,000–$69,999 | 5950 (39.0) | NA | | >$70,000 | 5860 (38.4) | NA |
| | Tumor site (%) | Nodal | 9784 (64.2) | 96 (63.2) | | Extranodal | 5458 (35.8) | 56 (36.8) |
| | Ann Arbor stage (%) | I | 3829 (25.1) | 33 (21.7) | | II | 2710 (17.8) | 26 (17.1) | | III | 2572 (16.9) | 28 (18.4) | | IV | 5282 (34.7) | 60 (39.5) | | Unknown | 849 (5.6) | 5 (3.3) |
| | Surgery (%) | No | 11027 (72.3) | 111 (73.0) | | Yes | 4215 (27.7) | 41 (27.0) |
| | Radiation (%) | No/unknown | 12838 (84.2) | 134 (88.2) | | Yes | 2404 (15.8) | 18 (11.8) |
| | Chemotherapy (%) | No/unknown | 5466 (35.9) | 37 (24.3) | | Yes | 9776 (64.1) | 115 (75.7) |
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