Table 6.

Competing risk regression model for pPCL patients.

Variables	Causes of death
	Leukemia		Myeloma		Other causes
	HR (95%CI)	P value	HR (95%CI)	P value	HR (95%CI)	P value
Age at diagnosis	1.49 (1.16, 1.91)	.0020	1.05 (1.00, 1.11)	.0673	0.99 (0.94, 1.05)	.7369
Age at death	0.67 (0.52, 0.86)	.0016	0.95 (0.91, 1.00)	.0731	1.04 (0.98, 1.10)	.2389
Race
Black	Reference		Reference		Reference
White	1.08 (0.69, 1.69)	.7383	0.97 (0.63, 1.50)	.8882	1.04 (0.47, 2.30)	.9161
Other	0.77 (0.31, 1.95)	.5812	0.50 (0.14, 1.73)	.2715	3.39 (0.89, 12.93)	.0737
Sex
Female	Reference		Reference		Reference
Male	1.13 (0.77,1.66)	.5215	0.75 (0.51, 1.12)	.1612	1.14 (0.55, 2.40)	.7228
Marital status
Married	Reference		Reference		Reference
Other	0.861 (0.57, 1.30)	.4728	0.96 (0.64, 1.44)	.8506	1.45 (0.74, 2.87)	.2816
Time periods of diagnosis
1975–1995	Reference		Reference		Reference
1996–2000	1.94 (1.06, 3.55)	.0326	0.52 (0.26, 1.04)	.0633	0.69 (0.25, 1.92)	.4802
2001–2005	2.12 (1.28, 3.53)	.0037	0.75 (0.44, 1.26)	.2713	0.36 (0.15, 0.87)	.0228
2006–2009	1.48 (0.84, 2.60)	.1738	0.82 (0.51, 1.33)	.4254	0.64 (0.29, 1.39)	.2557

pPCL = primary plasma cell leukemia.