Table 2.

The correlation of PD-L1 with chemokines and cytokines in periodontally diseased and periodontally healthy control subjects

Comparison	Estimated correlation	Lower bound 95% CI	Upper bound 95% CI	p-valuea
Healthy sites in periodontally diseased and periodontally healthy control subjects (N = 31)
PD-L1 vs IL6	− 0.35	− 0.63	0.00	0.05
PD-L1 vs CXCL8	− 0.56	− 0.76	− 0.26	0.001
PD-L1 vs IL10	− 0.43	− 0.68	− 0.09	0.02
PD-L1 vs CCL3	− 0.37	− 0.64	− 0.01	0.04
Diseased sites in periodontally diseased subjects (N = 20)
PD-L1 vs CCL11	0.51	0.09	0.78	0.02
PD-L1 vs CSF2	0.69	0.36	0.87	0.001
PD-L1 vs IFNG	0.49	0.06	0.77	0.03
PD-L1 vs IL12A	− 0.54	− 0.79	− 0.13	0.01
PD-L1 vs IL1A	0.46	0.03	0.75	0.04
PD-L1 vs IL1B	0.56	0.15	0.80	0.01
PD-L1 vs IL2	0.50	0.07	0.77	0.03
PD-L1 vs IRX1	− 0.55	− 0.80	− 0.15	0.01
PD-L1 vs IL7	0.61	0.23	0.83	0.004
PD-L1 vs IL15	0.64	0.27	0.84	0.003
PD-L1 vs CCL5	0.50	0.07	0.77	0.03

Taken from, the 37 healthy sites in 19 periodontally diseased subjects and the 48 healthy sites in 12 periodontally healthy control subjects

^aPearson’s correlation