Retrospective Cohort Study
Copyright ©The Author(s) 2016.
World J Gastroenterol. Aug 21, 2016; 22(31): 7146-7156
Published online Aug 21, 2016. doi: 10.3748/wjg.v22.i31.7146
Figure 4
Figure 4 Kaplan-Meier curve showing the impact of CHRNA5 mRNA expression on the overall survival of esophageal squamous cell carcinoma patients. Kaplan-Meier survival curve according to CHRNA5 expression fold-change (ratio between expression in the tumor and the normal surrounding tissue), with follow-up duration of 5 years after diagnosis (total n = 28). Censored values (+) indicate the last known follow-up time for the corresponding subjects. Adjustments were performed for tumor stage and age.