Forest plot of hazard ratio for overall survival of patients with gastric cancer.

<p>The squares and horizontal lines correspond to the study- specific HR and 95% CI. The area of the squares reflects the study-specific weight (inverse of the variance). The diamonds represent the pooled HR and 95% CI. The solid vertical line is at the null value (HR = 1). The pooled HR for OS showed overexpression of CD24 reduced OS in gastric cancer (HR = 1.99, 95%CI 1.29–3.07, P = 0.002).