Figure 5. Meta-analysis comparing artesunate vs. placebo for chemoprophylaxis against schistosomiasis japonica.

The mid-points of the lines represent the relative risk and the end-points of the lines show the corresponding 95% C.I. The diamond at the bottom is the overall relative risk. The vertical line emphasizes an relative risk = 1 (no difference) and the dashed vertical line shows the value of the overall relative risk. Relative risk <1 indicates a protective effect of artesunate. The original reports are labeled with author name, year, and location, number of dosis and interval of administration (for details see table 4).