[Retracted] Elevated Substance P Is a Risk Factor for Postoperative Delirium in Patients with Hip Fracture

Table 1

Characteristics of hip fracture patients with and without postoperative delirium.

	No postoperative delirium ()	Postoperative delirium ()	values
Age (years)			0.882
Gender, male/female	60/31	39/18	0.754
LDL (mmol/L)			0.028
HD L(mmol/L)			1.000
FBG (mmol/L)			0.494
HbAlc (%)			0.357
WBC (×10^9/L)			0.690
Neutrophil (×10^9/L)			0.708
Lymphocyte (×10^9/L)			0.482
Preoperative substance P (pg/ml)			0.601
Postoperative substance P (pg/ml)			<0.001

LDL: low-density lipoprotein; HDL: high-density lipoprotein; FBG: fasting blood glucose; HbA1c: glycosylated hemoglobin type A1c; WBC: white blood cells. , .