Table 1.

Correlation between mast cells infiltration and patient characteristics

Characteristic	Patients (n = 289)		TIM infiltration		P a
	Number	%	Low (n = 145)	High (n = 144)
Age at surgery, yearsb
Mean ± SD	63.09 ± 11.06		61.68 ± 11.19	64.50 ± 10.77	0.031
Gender
Female	185	64.0	92	93	0.84
Male	104	36.0	53	51
pT‐stage
T2	171	59.2	87	84	0.81
T3	85	29.4	40	45
T4	33	11.4	18	15
pN‐stage
N0	226	78.2	113	113	0.837
N1	53	18.3	26	27
N2	10	3.5	6	4
TNM stage
II	159	55.0	80	79	0.537
III	79	27.3	35	44
IV	51	17.7	30	21
Tumor differentiation
Well, moderate	154	53.3	72	82	0.304
Poor	135	46.7	73	42
Residual tumor
R0	255	88.2	131	124	0.266
R1	34	11.8	14	20
Vascular invasion
Absent	196	67.8	101	95	0.504
Present	93	32.2	44	49
ACT
Absent	179	61.9	93	86	0.441
Present	110	38.1	52	58

ACT, adjuvant chemotherapy; TIM, tumor‐infiltrating mast cells; SD, standard deviation.

^a P < 0.05 is considered statistically significant.

^bThe results of continuous variables are presented as mean ± SD.

Bold value is considered statistically significant.