Table 1. FEV1 percent of predicted compared by NLR breakpoint of 3 in children 9-18 years of age.

	NLR < 3	NLR ≥ 3
Clinical Parameter	N = 56	N = 14	P-value
FEV1 % of predicted	97.2 ± 15.6	84.1 ± 15.1	0.006

Abbreviations: NLR − neutrophil to lymphocyte ratio, FEV1 − forced expiratory volume in 1 second