Weak inverse correlation between circulating IL-7 and CD3 and CD4 counts but not with CD8 counts in patients evaluated for idiopathic CD4 lymphopenia.

Scatter plot of serum IL-7 and CD3⁺, CD4⁺, and CD8⁺ count in 51 patients evaluated for idiopathic CD4 lymphopenia. Spearman correlation (r) and P value are shown with each graph.