Multivariate COX regression hazard model
A model was proposed to calculate the Cox Proportional Hazard Ratios by
utilizing 4 factors- age, cytomorphology, stage, and ALK protein
expression in 39 cases and data is depicted as a forest plot
(Supplementary Fig 1). The global p-value using Log Rank test was
significant (p= 0.04). Based on the hazard ratios, ALK negativity was
associated with poor outcome.