Table 1.

Single-factor analysis of clinical features with 3-year OS

Factors	n	3-year OS (%)	X 2	P value
Age
≤65	81	88.7	0.81	0.3694
>65	91	89.7
Gender
Male	94	88.5	0.01	0.9209
Female	78	89.7
Abdominal surgery history
Yes	38	95.5	0.02	0.8822
No	134	87.4
Tumor size (cm)
<4	41	93.4	3.17	0.2046
4–6	96	91.5
>6	35	76.2
Complications
Yes	28	81.2	1.2	0.274
No	144	90.5

OS overall survival