Preoperative assessment of cognitive function and risk assessment of cognitive impairment in elderly patients with orthopedics: a cross-sectional study

Table 2 Laboratory test results of patients with or without cognitive impairment

Variables	Cognitive normal (n = 267)	Cognitive impairment (n = 107)	Statistical values	P
Hcy (μmol/L), median (IQR)	11.3 (9.8–13.8)	12.3 (9.9–15.7)	1.991^a	0.046
TG (mmol/L), median (IQR)	1.31 (0.97–1.78)	1.23 (0.96–1.66)	−0.738^a	0.460
TC (mmol/L, mean ± SD)	4.22 ± 0.94	4.48 ± 1.05	−2.431^b	0.016
LDL (mmol/L), median (IQR)	2.45 (1.98–2.94)	2.37 (1.88–2.97)	− 0.480^a	0.631
FBG (mmol/L), median (IQR)	4.89 (4.45–5.45)	5.06 (4.63–5.99)	2.043^a	0.041
ALB(g/L), median (IQR)	42.0 (38.7–44.7)	41.3 (38.5–43.4)	−0.720^a	0.472
ALT (U/L), median (IQR)	15 (12–21)	15 (10–22)	−0.591^a	0.555

Hcy Homocysteine, TG Triglyceride, TC Total cholesterol, LDL low density lipoprotein, FBG Fasting blood glucose, ALB Albumin, ALT Alanine aminotransferase, SD Standard deviation, IQR Interquartile range
^aχ² values; ^bZ values

ISSN: 1471-2253