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Figure 2: (a) The mean serum PO4 level with 95% confidence interval in the studies included in the metaanalysis. Each line shows the 95% confidence interval. The diamond shows the overall effects of the studies. The mean serum PO4 level in children with either partial or complete rickets using the random effects model. Each square represents the effect estimated for individual studies. The confidence interval of the mean PO4 serum level is reflected by the size of each square, which is proportional to the weight assigned to each study. The diamond represents the overall pooled results. (b) The mean serum Ca level with 95% confidence interval in the studies included in the metaanalysis. Each line shows the 95% confidence interval. The diamond shows the overall effects of the studies. (c) The mean serum alkaline phosphatase level with 95% confidence interval in the studies included in the metaanalysis. Each line shows the 95% confidence interval. The diamond indicates the overall effects of the studies. The overall mean serum alkaline phosphatase level in children with either partial or complete rickets using the random effects model. Each square represents the effect estimated for individual studies 
