[Retracted] Establishment and Validation for Predicting the Death of Multiple Myeloma among Whites

Table 1

Characteristics of included patients in the training set.

Variables	Total (n = 20238)
Age, years, mean ± SD	67.28 ± 12.05
Gender, n (%)
Female	8640 (42.69)
Male	11598 (57.31)
Marital status, n (%)
Married	12878 (63.63)
Single	2420 (11.96)
Widowed	2950 (14.58)
Others	1990 (9.83)
Number of malignant tumors in situ, mean ± SD	1.08 ± 0.30
Number of benign tumors, n (%)
0	20131 (99.47)
>0	107 (0.53)
Metastasis, n (%)
Distant	19155 (94.65)
Others	1083 (5.35)
Disease site, n (%)
Bone marrow	19001 (93.89)
Others	1237 (6.11)
Chemotherapy, n (%)
No	8055 (39.80)
Yes	12183 (60.20)
Radiotherapy, n (%)
No	4412 (21.80)
Yes	15826 (78.20)
Survival state, n (%)
Alive	9437 (46.63)
Dead	10801 (53.37)
Overall survival, months, M (Q1, Q3)	28.00 (11.00, 55.00)