CHI3L1 and neoplasm: Using univariate analysis, high CHI3L1 expression (HR 3.03, 95% CI: 1.84 − 5.00, p < 0.001), advanced stage (HR: 5.20, 95% CI: 1.63 − 16.59, p = 0.005) and residual tumor size > 1 cm after debulking surgery (HR: 3.09, 95% CI: 1.81 − 5.26, p < 0.001) were risk factors for death.