表 1.

NP组与NNP组各项实验室检查指标的比较

Comparison of laboratory indexes between NP group and NNP group

Items	NP group (n=96)	NNP group (n=122)	Z/t/χ2	P
Data are presented as x±s or M (P25, P75). NP, necrotizing pneumonia; NNP, non-necrotizing pneumonia; CRP, C-reactive protein; PCT, procalcitonin; LDH, lactate dehydrogenase.
Leukocytes/(×109/L)	15.33 (11.83, 22.97)	10.56 (8.34, 13.45)	-6.325	< 0.001
Neutrophil ratio/%	0.75 (0.65, 0.80)	0.63 (0.51, 0.76)	-4.535	< 0.001
Platelet/(×109/L)	421.56±149.87	411.75±133.27	0.522	0.602
CRP/(mg/L)	52 (33, 106)	9 (4, 27)	-8.672	< 0.001
PCT/(μg/L)	0.35 (0.16, 0.56)	0.24 (0.12, 0.37)	-2.685	0.007
D-dimer/(mg/L)	5.11 (1.97, 10.59)	1.52 (0.77, 3.19)	-6.375	< 0.001
LDH/(U/L)	299 (252, 408)	332 (274, 422)	-1.634	0.102
Ferritin/(μg/L)	173.03 (91.32, 445.53)	137.03 (42.30, 333.32)	0.318	0.570