IL6 and peritonitis: In fact, a retrospective observational study of incident PD patients (n = 31) receiving standard solutions reported higher baseline dialysate IL-6 concentrations in patients who developed peritonitis (58.4 ± 12.6 pg/mL) compared to those who remained peritonitis-free (20.3 ± 8.7 pg/mL, P = 0.07) [8].