Table 2.

Comparison of the diagnostic sensitivity for N, L, and NLR

	Influenza virus infection (N = 107)	Healthy control (N = 100)	Reference range	Sensitivity	P value
N (109/L)	6.247 ± 5.700	3.226 ± 0.913	1.8‐6.3	37.40%	<.001***
L (109/L)	1.167 ± 1.341	2.111 ± 0.429	1.1‐3.2	60.75%	<.001***
NLR	8.877 ± 9.855	1.595 ± 0.507	0.581‐2.61	70.09%	<.001***

The reference range of NLR was the 95% confidence interval of NLR in the control group, P < .01. Student's t test for independent samples was used to compare continuous variables.

^* P < .05.

^** P < .01.

^*** P < .001.