Table 2.

Correlation Analysis Between Inflammatory Markers and Pulmonary Function Parameters

	PLR		NLR		CRP
	r	P	r	P	r	P
FVC (absolute)	−0.149	0.015	−0.105	0.080	−0.069	0.388
FVC (%predicted)	−0.192	0.002	−0.262	<0.001	−0.236	0.003
FEV1 (absolute)	0.101	0.098	−0.203	<0.001	−0.156	0.049
FEV1 (% predicted)	−0.094	0.126	−0.217	<0.001	−0.288	<0.001
FEV1/FVC	0.101	0.098	0.045	0.460	−0.048	0.545
DLCO (absolute)	−0.271	<0.001	−0.235	<0.001	−0.112	0.179
DLCO (% predicted)	−0.139	0.032	−0.152	0.016	−0.205	0.013
PLR	–	–	0.718	<0.001	0.187	0.022
NLR	0.718	<0.001	–	–	0.427	<0.001
CRP	0.187	0.022	0.427	<0.001	–	–

Note: P-value calculated using Spearman’s rho.

Abbreviations: CRP, c-reactive protein; FEV1, forced expiratory volume in 1 s; FVC, forced vital capacity; DLCO, diffusing capacity of the lung for carbon monoxide; NLR, neutrophil–lymphocyte ratio; PLR, platelet–lymphocyte ratio.