Table 1.

Baseline characteristics of 185 patients with high-risk GISTs.

Characteristics	All patients	Group A	Group B	Group C	Group D	P value
Age (M ± SD, years)	54.8 ± 12.0	56.9 ± 12.8	53.7 ± 9.9	52.5 ± 10.5	52.1 ± 13.1	0.13
Gender (M/F, n)	77/108	39/51	15/25	15/15	8/17	0.53
Tumor size (cm)	8.6 ± 5.8	8.9 ± 6.3	7.9 ± 4.9	9.8 ± 7.1	7.2 ± 2.0	0.32
Mitotic (/50 HPF)						0.33
<5	36	21	6	4	5
5–10	96	23	13	13	4
>10	53	46	21	13	16
Tumor sites (n)						0.64
Gastric	124	60	28	20	16
Small bowel	49	21	11	9	8
Colorectal	12	9	1	1	1
GI bleeding (Y/N, n)	116/69	35/55	12/28	11/29	15/10	0.11

M ± SD: mean ± standard deviation.

GI bleeding: gastrointestinal bleeding.