The non-significant difference in IL-10 levels may be attributed to the conflicting results of previous studies on IL-10 levels in children with asthma (most studies reported low IL-10 levels; a few reported high IL-10 levels), as well as the contradictory results between low IL-10 levels in children with asthma and high IL-10 levels in stunted children (Figure 1). This evidence concerns the gene IL10 and asthma.