Clinical analysis of primary anaplastic carcinoma of the small intestine

Table 2 Clinical characteristics after surgical resection of anaplastic carcinoma of the small intestine (mean ± SD)

Characteristics	No. of patients	3 yr survival rate (%)	Median survival in months	P value
Overall	17	10.8	5.0 ± 1.4
Age (yr)
< 65	13	15	9.0 ± 4.2	0.03
> 65	5	0	5.0 ± 1.6
Gender
Male	11	12.1	4.0 ± 1.5	0.38
Female	7	0	8.0 ± 2.6
Tumor depth
T2 (MP)	2	66.7	26.7 ± 7.6	0.21
T3 (SS)	5	0	6.0 ± 1.5
T4 (SE, SI)	10	0	2.0 ± 1.0
Tumor location
Jejunum	10	0	4.0 ± 2.4	0.17
Ileum	8	25	6.0 ± 7.0
Tumor size (cm)
< 7	8	28.6	20.0 ± 10.9
> 7	10	0	2.0 ± 1.3	0.13
LN metastasis
Negative	7	41.7	36.0 ± 21.9	0.0009
Positive	9	0	2.0 ± 0.3

MP: Muscularis propria layer; SS: Subserosal layer; SE: Penetration of serosa; SI: Invasion of adjacent structures.