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Fig. 4 | BMC Medicine

Fig. 4

From: Antimalarial drugs for preventing malaria during pregnancy and the risk of low birth weight: a systematic review and meta-analysis of randomized and quasi-randomized trials

Fig. 4

Three doses or more compared to two doses of the main type of antimalarial drug used for prevention of malaria during pregnancy and risk of LBW. Each study is displayed as a square and horizontal line representing the relative risk together with its confidence interval. The area of the square represents the weight that the study contributes to the meta-analysis. The combined relative risk and its confidence interval are represented by the diamond. The P value after I2 represents chi-square test for heterogeneity. DerSimonian and Laird were used to calculate the random effect model. *Relative risk has been calculated with the Mantel–Haenszel method instead of using the odds ratio (OR) provided in the paper. CI, confidence interval; LBW, low birth weight; RR, relative risk

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