Figure 4

pRKIP expression levels predict the probability of survival in individuals with NSCLC. Shown are Kaplan-Meier survival plots for patients with NSCLC. Solid lines are higher pRKIP expression levels (mean integrated intensity > 1) and dashed lines are lower pRKIP expression levels (mean integrated intensity ≤1). n is the number of individuals in each category. (A) For all individuals represented on the TMA with NSCLC, a lower pRKIP expression level predicted a greater probability of survival compared to those with higher pRKIP levels (P = 0.0118). (B) For individuals represented on the TMA with NSCLC stage I, a lower pRKIP expression level predicted a greater probability of survival compared to those with higher pRKIP levels (P = 0.0025). (C) For individuals represented on the TMA with NSCLC who were 65 years of age or older, a lower pRKIP expression level predicted a greater probability of survival compared to those with higher pRKIP levels (P = 0.0038). (D) pRKIP expression levels yielded no predictive power for individuals with NSCLC who were younger than 65 years of age (P = 0.857).