HOXA11 and cancer: According to sensitivity analysis, we re-evaluate the prognostic role of HOXA11-AS expression in OS for cancer patients after exclude these two outlier studies [26, 30], and the combined HR for the remaining studies is 2.45 (95% CI 1.85–3.25), without any significant heterogeneity across the studies (p = 0.445; I2 = 0).