Increasing the frequency of CIK cells adoptive immunotherapy may decrease risk of death in gastric cancer patients

Table 1 Distribution of demographic and clinical characteristics in two groups

Demographic and clinical features	n	Groups, n (%)		χ2	P
		Group I	Group II
Sex
Men	122	62 (76.5)	60 (80)	0.273	0.601
Women	34	19 (23.5)	15 (20)
Age (yr)
≤ 45	14	7 (8.6)	7 (9.3)	0.047a	0.977
45 < age ≤ 60	71	36 (44.5)	35 (46.7)
> 60	71	38 (46.9)	33 (44.0)
Tumor siteb
Gastric cardia
Yes	58	30 (37.0)	28 (37.3)	0.002	0.970
No	98	51 (63.0)	47 (62.7)
Gastric body
Yes	64	35 (43.2)	29 (38.7)	0.332	0.564
No	92	46 (56.8)	46 (61.3)
Gastric antrum
Yes	36	17 (21.0)	19 (25.3)	0.414	0.520
No	120	64 (79.0)	56 (74.7)
Tumor sizec (cm)
< 5	76	43 (59.7)	33 (55.0)	0.299	0.585
≥ 5	56	29 (40.3)	27 (45.0)
Histological typec
Differentiated	52	28 (35.4)	24 (64.6)	0.002	0.962
Poorly-differentiated	94	51 (38.5)	43 (64.2)
Invasionc
Yes	112	55 (76.4)	57 (89.1)	3.745	0.053
No	24	17 (23.6)	7 (10.9)
Lymph node metastasisc
Yes	100	55 (76.4)	45 (70.3)	0.643	0.423
No	36	17 (23.6)	19 (29.7)
Relapse
Yes	98	58 (28.4)	40 (46.7)	5.566	0.018
No	58	23 (71.6)	35 (53.3)
Pathological grade
1	2	1 (1.3)	1 (1.3)	2.976	0.395
2	27	18 (22.2)	9 (12.0)
3	92	44 (54.3)	48 (64.0)
4	35	18 (22.2)	17 (22.7)
Tumor stage
I	14	9 (11.1)	5 (6.7)	2.129a	0.546
II	22	12 (14.8)	10 (13.3)
III	102	49 (60.5)	53 (70.7)
IV	18	11 (13.6)	7 (9.3)

^acmh2 χ²-test;

^bTwo cases of gastric cancer involving gastric cardia and body;

^cMissed cases.