18F-fluorodeoxyglucose positron emission tomography/computed tomography comparison of gastric lymphoma and gastric carcinoma

Table 4 Association of SUVmax with clinicopathological features among patients with gastric carcinomas

Characteristics	n	SUVmax and THKmax		SUVmax
		mean ± SD	P value1	High (n)	Low (n)	P value2
Sex
Male	48	7.55 ± 4.53	0.4572	15	33	0.2803
Female	25	9.89 ± 7.54		11	14
Age (yr)
< mean	35	7.14 ± 4.56	0.0881	9	26	0.0903
≥ mean	38	9.46 ± 6.61		17	21
Histopathological subtype
Mucinous	13	5.28 ± 2.06	0.0322	1	12	0.0465
		1.75 ± 0.934
Non-mucinous	60	9.02 ± 6.14	0.7814	25	35
		2.07 ± 1.374
TNM stage
I/II	30	5.17 ± 2.96	< 0.0012	2	28	< 0.0015
		1.57 ± 0.804
III/IV	43	10.57 ± 6.27	0.2074	24	19
		2.32 ± 1.504

¹The value was compared by Student's t test;

²The value was compared by Wilcoxon’s rank-sum test;

³The relation with variables was evaluated by Pearson χ² test;

⁴The value of THKmax according to the cell-types and TNM staging;

⁵The relation with variables was evaluated by continuity correction χ² test. SUVmax: Maximal standard uptake value; THKmax: The maximal thickness.