Four studies investigated the association between the expression of HOTAIR and OS in a total number of 441 patients, we then conducted a meta-analysis on the relationship of HOTAIR expression and the overall survival (OS) of patients with ovarian cancer; As the heterogeneity was not significant (I2 = 18.0%, P = 0.30), a fixed effects model was applied. This evidence concerns the gene HOTAIR and ovarian carcinoma.