There was no significant difference in baseline PD effluent IL-6 (23.0 ± 18.3 vs 23.4 ± 42.2 pg/ml, p = 0.9), COX-2 (143.5 ± 73.1 vs 261.3 ± 316.9 ng/ml, p = 0.2) or HGF levels (2.67 ± 1.94 vs 3.56 ± 6.09 pg/ml, p = 0.6) between patients with and without peritonitis episode in the subsequent one year. Here, PTGS2 is linked to peritonitis.