Table 5

Inverse correlation of abnormal expression of p53, pRB, or p16 and K-ras codon 12 mutations

K-ras codon 12 mutation
NoYes
p53, pRB, or p16 expression
 Normal166
 Abnormal765
P = 0.00449 (χ2)
P = 0.01115 (Fisher’s test)