Forest plot of Alfuzosin versus control therapy.

<p>The central square of each horizontal line represents the RR or WMD for each study. The lines demonstrate the range of the 95% CI. The vertical line at an RR of 1 or at WMD of 0 is the line of no effect. % Weight indicates the influence exerted by each study on the pooled RR or WMD. CI = confidence interval; M-H = Mantel-Haenszel; IV = inverse variance; SD = standard deviation.