Cefoperazone sodium/sulbactam sodium vs piperacillin sodium/tazobactam sodium for treatment of respiratory tract infection in elderly patients

Table 3 Comparison of laboratory indexes between the two groups before and 7 d after treatment (mean ± SD)

Group	n	PCT (ug/L)	CRP (mg/L)	WBC (× 109/L)	NE (%)
Before treatment
Study	37	12.89 ± 3.96	19.62 ± 6.44	20.61 ± 6.38	86.14 ± 7.21
Control	37	14.05 ± 4.11	18.79 ± 5.96	21.21 ± 5.59	84.39 ± 6.95
t		1.236	0.575	0.430	1.063
P value		0.220	0.567	0.668	0.291
After 7 d of treatment
Study	37	2.01 ± 0.56	3.11 ± 1.02	5.10 ± 1.83	56.35 ± 7.17
Control	37	3.29 ± 0.64	5.67 ± 1.23	8.13 ± 3.01	64.22 ± 8.08
t		9.155	9.745	5.232	4.432
P value		< 0.001	< 0.001	< 0.001	< 0.001

PCT: Procalcitonin; CRP: C-reactive protein; WBC: White blood cell count; NE: Neutrophil percentage.