Figure 3

Correlations between serum levels of soluble alpha Klotho (sαKl) and interleukin (IL)-6 among smokers and never-smokers.

Correlations between serum levels of sαKl and IL-6 in (A) middle-aged smoker (n = 40), (B) middle-aged never-smoker (n = 40), (C) aged smoker (n = 34) and (D) aged never-smoker (n = 26).