Table 1.

Clinicopathologic features of the GIST samples used in this study

Age (y, median ± SD)68.0 ± 14.1
Gender
    Male53 (50.0%)
    Female53 (50.0%)
Tumor location
    Stomach68 (64.8%)
    Small intestine28 (26.7%)
    Omentum4 (3.8%)
    Colon3 (2.8%)
    Esophagus2 (1.9%)
Tumor size (cm, average ± SD)6.92 ± 41.0
Mitotic count (/50 HPF, average ± SD)7.1 ± 11.7
Risk category (n = 85)
    Very low1 (1.2%)
    Low23 (27.1%)
    Intermediate19 (22.3%)
    High42 (49.4%)
Metastasis in high-risk group (n = 42)
    Absent28 (66.7%)
    Present14 (33.3%)