Figure 2

Distribution of PTTG expression in primary tumors with different pN stages. Boxplot shows PTTG expression of all analyzed primary tumors (n = 89) grouped to their corresponding pN-stages (a). The pN-stage correlated to PTTG expression level with a significance of P = 0.021. Thereby significant (P = 0.016) differences between the pN0 (n = 25, negative) and pN+ (n = 64, positive) staged patients could be detected (b).