Among studies with median age of < 60 y, we also observed a statistically significant effect of ALDH expression on OS (HR, 2.18; 95% CI, 1.36-3.49; I2=0%) and DFS (HR, 1.94; 95% CI, 1.16-3.24; I2=0%) in ovarian cancer patients. Here, LDHA is linked to ovarian carcinoma.