Fig. 3
From: Prognostic value of angiopoietin-2 in non-small cell lung cancer patients: a meta-analysis
Association of Ang-2 expression with clinicopathological parameters. a Seven studies investigated the relationship between Ang-2 expression and tumor stages, and their pooled results revealed that Ang-2 expression significantly associated with tumor stages. b Eight studies illuminated the association of Ang-2 expression with tumor differentiation; the combined OR revealed that there was a significant association between Ang-2 expression and tumor differentiation. c Ang-2 expression had a significant relationship with lymphatic invasion in NSCLC patients. d The combined OR showed that Ang-2 expression was not significantly associated with tumor size