Fig. 1

Univariate and multivariate analysis of expression levels of 59 lncRNAs with overall survival as dependent variable. a Univariate analyses with Cox proportional hazards regression was carried out to evaluate the association between lncRNA expression and patients’ OS. A total of 59 lncRNAs, whose expression levels were significantly associated with patients’ OS (p < 0.01), were identified and ranked according to their univariate z scores. b Multivariate analyses with Cox proportional hazards regression was performed on the expression levels of 59 lncRNAs with OS as a dependent variable and other individual clinical features as explanatory variables in the training dataset