High Ki67 levels (> 10% of the labeling index) were detected more frequently in the high SUV group than in the low SUV group of primary breast cancer (p = 0.02, Table 4) and correlated with shorter disease-free survival in the univariate and multivariate analyses of DFS (p = 0.0016 and 0.011, respectively, Table 4). The gene discussed is MKI67; the disease is breast carcinoma.