Research Article
[Retracted] Establishment and Validation for Predicting the Death of Multiple Myeloma among Whites
Table 2
Univariate analysis between the survival group and the death group in the training set.
| | Variables | Total (n = 20238) | Survival group (n = 9437) | Death group (n = 10801) | Statistic | P |
| | Age, years, mean ± SD | 67.28 ± 12.05 | 62.97 ± 11.52 | 71.04 ± 11.21 | t = -50.310 | <0.001 |
| | Gender, n (%) | | | | χ2 = 0.101 | 0.751 | | Female | 8640 (42.69) | 4040 (42.81) | 4600 (42.59) | | | | Male | 11598 (57.31) | 5397 (57.19) | 6201 (57.41) | | |
| | Marital status, n (%) | | | | χ2 = 632.686 | <0.001 | | Married | 12878 (63.63) | 6595 (69.88) | 6283 (58.17) | | | | Single | 2420 (11.96) | 1182 (12.53) | 1238 (11.46) | | | | Widowed | 2950 (14.58) | 759 (8.04) | 2191 (20.29) | | | | Others | 1990 (9.83) | 901 (9.55) | 1089 (10.08) | | |
| | Number of malignant tumors in situ, mean ± SD | 1.08 ± 0.30 | 1.08 ± 0.30 | 1.08 ± 0.30 | t = 0.460 | 0.643 |
| | Number of benign tumors, n (%) | | | | χ2 = 0.316 | 0.574 | | 0 | 20131 (99.47) | 9390 (99.50) | 10741 (99.44) | | | | >0 | 107 (0.53) | 47 (0.50) | 60 (0.56) | | |
| | Metastasis, n (%) | | | | χ2 = 172.869 | <0.001 | | Distant | 19155 (94.65) | 8722 (92.42) | 10433 (96.59) | | | | Others | 1083 (5.35) | 715 (7.58) | 368 (3.41) | | |
| | Disease site, n (%) | | | | χ2 = 149.955 | <0.001 | | Bone marrow | 19001 (93.89) | 8652 (91.68) | 10349 (95.82) | | | | Others | 1237 (6.11) | 785 (8.32) | 452 (4.18) | | |
| | Chemotherapy, n (%) | | | | χ2 = 63.150 | <0.001 | | No | 8055 (39.80) | 3480 (36.88) | 4575 (42.36) | | | | Yes | 12183 (60.20) | 5957 (63.12) | 6226 (57.64) | | |
| | Radiotherapy, n (%) | | | | χ2 = 16.682 | <0.001 | | No | 4412 (21.80) | 2177 (23.07) | 2235 (20.69) | | | | Yes | 15826 (78.20) | 7260 (76.93) | 8566 (79.31) | | |
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