Survival of patients with normal and elevated IL-22 serum levels. Kaplan-Meier curve for survival of patients with normal (IL-22 ≤18 pg/ml, black line) and elevated IL-22 levels (IL-22 >18 pg/ml, grey line). Survival was significantly higher in patients with normal vs. elevated IL-22 serum levels according to the log rank test (P = 0.003). The number of patients at risk is shown in the table below the plot.
Kronenberger et al. BMC Medicine 2012 10:102 doi:10.1186/1741-7015-10-102