Childhood asthma biomarkers including zinc: An exploratory cross-sectional study

Figure 1 Pie chart showing the sex distribution among children with bronchial asthma.

Figure 2 Error bar showing the mean difference between cases and controls, including the confidence interval regarding zinc levels.

Figure 3 Box plot showing the median difference between cases and controls regarding ferritin levels.

Figure 4 Scatter plot between serum iron and serum ferritin levels.

Figure 5 Box plot showing the median difference in serum immunoglobulin E levels between cases and controls.

Figure 6 Box plot showing the median difference in immunoglobulin E levels between children with mild, moderate, and severe asthma.