Nevertheless, overexpression of SNHG6 had no significant relation to sex (male vs female) (OR = 1.15, 95% CI = 0.87–1.51, P = 0.324, fixed-effect model), histological grade (poorly/others vs well/moderately) (OR = 1.21, 95% CI = 0.77–1.89, P = 0.410, fixed-effect model) and tumor size (≥5 cm vs < 5 cm) (OR = 1.60, 95% CI = 0.69–3.72, P = 0.273, random-effect model). This evidence concerns the gene SNHG6 and neoplasm.