Analysis of histopathological and clinical prognostic factors in lymphomas involving the gastrointestinal system

Table 3 Comparison of clinical characteristics, overall survival, event-free survival, and sites of origin, n (%)

Clinical characteristic	Stomach (n = 43) (69.3%)	Intestinal tract (n = 19) (30.6%)	P value
Age (years)			0.153
< 60	22 (51.2)	6 (31.6)
≥ 60	21 (48.8)	13 (68.4)
Gender			0.687
Female	18 (41.9)	9 (47.4)
Male	25 (58.1)	10 (52.6)
Histologic type			0.522
B-Cell	42 (97.7)	18 (94.7)
T-Cell	1 (2.3)	1 (5.3)
LDH level			0.033
< 270	27 (62.8)	17 (89.5)
≥ 270	16 (37.2)	2 (10.5)
Stage group			0.638
I-II	40 (93)	17 (89.5)
IV	3 (7)	2 (10.5)
Performance score			1.000
0-1	38 (88.4)	17 (89.5)
≥ 2	5 (11.6)	2 (10.5)
IPI score			0.666
0-2	39 (90.7)	16 (84.2)
≥ 3	4 (9.3)	1 (5.3)
OS (%)			0.531
1-year/3-year/5-year	67.4/56.6/53.4	67.7/56.4/49.3
EFS (%)			0.720
1-year/3-year/5-year	80.2/63.9/56.8	79.6/48.3/48.3

OS: Overall survival; EFS: Event-free survival; LDH: Lactate dehydrogenase; IPI: International Prognostic Index.