. Author manuscript; available in PMC: 2024 Oct 1.

Published in final edited form as: Anesthesiology. 2023 Oct 1;139(4):432–443. doi: 10.1097/ALN.0000000000004666

Table 2.

Biomarker descriptive statistics for the entire cohort and stratified by delirium status

Biomarker	All patients	Postoperative delirium (no)	Postoperative delirium (yes)	p-value^*
P-tau 181 (pg/mL) Median (IQR)	2.3(1.64)	2.23(1.51)	2.45(1.69)	0.29
NfL (pg/mL) Median (IQR)	27.1 (27.15)	23.7 (19.5)	32.05 (33.9)	0.02
GFAP (pg/mL) Median (IQR)	156 (120.25)	154.5 (114.5)	157.5 (131)	0.48
Aβ₄₂ (pg/mL) Median (IQR)	6.55 (3.85)	6.52 (3.4)	6.63 (4.34)	0.82

P-value is based on the Kolmogorov- Smirnov test

IQR = inter-quartile range