Original Article
Copyright ©2012 Baishideng Publishing Group Co.
World J Gastroenterol. Jun 21, 2012; 18(23): 2929-2937
Published online Jun 21, 2012. doi: 10.3748/wjg.v18.i23.2929
Table 1 Correlations between the co-expression of wild-type KIT receptor and stem cell factor and clinicopathological factors in gastrointestinal stromal tumors
Co-expression of wild-type KIT receptor and stem cell factor
Absent (n = 12)Present (n = 39)P value
Age (yr)58.9 ± 13.252.8 ± 10.50.0524
Sex
Male6180.8154
Female621
Tumor size (cm)3.69 ± 1.686.21 ± 3.940.0118
Histological phenotype
Spindle type8260.7262
Epithelioid/mixed type413
Cellularity
Sparse160.8000
Moderate/dense1133
Tumor location
Gastric6250.5931
Non-gastric614
Proliferative index2.92 ± 2.237.21 ± 4.930.0012
pHH3
≤ 512240.0282
> 5015
Mitotic counts3 ± 2.377.36 ± 6.360.0058
≤ 510140.0004
> 5225
Apoptosis index44.58 ± 19.0032.59 ± 17.630.0484
c-kit mutation
Presence5270.1659
Absence712
National Institutes of Health risk group
Very low or low10100.0012
Intermediate or high229