Nomogram model predicting the overall survival for patients with primary gastric mucosa-associated lymphoid tissue lymphoma

Table 2 Multivariate analysis of overall survival for patients with primary gastric mucosa-associated lymphoid based on least absolute shrinkage and selection operator regression in the training set (n = 1823)

Variable		Multivariate		Analysis
		HR	95%CI of HR	P value
Age
< 45	Reference
45-65		4.290	1.881-9.815	0.001b
≥ 65		19.843	8.843-44.528	< 0.001c
Sex
Male
Female		0.722	0.606-0.860	< 0.001c
Race
White	Reference
Black		1.374	1.020-1.779	0.036a
Other		0.704	0.493-1.003	0.052
Stage (Ann Arbor)
I	Reference	1.437	1.084-1.904	0.012a
II		1.732	1.076-2.786	0.024a
III		1.844	1.401-2.428	< 0.001c
IV
Radiation	Reference
No/unknown
Yes		0.670	0.542-0.829

^aP < 0.05.

^bP < 0.01.

^cP < 0.001.

OS: Overall survival; HR: Hazard ratio; CI: Confidence interval.