Table 3.

Biomarker levels in iNPH and controls (median and IQ range)

	iNPH	Controls
	n = 20	n = 20
NFL (ng/L)	1185 (731–2103)	938 (610–2141)
APL1β25 (ng/L)	2591 (2296–2951) ↑	2180 (1898–2386)***
APL1β27 (ng/L)	1083 (887–1177) ↑	874 (796–964)***
APL1β28 (ng/L)	1423 (1317–1550) ↓	1621 (1422–1797)**
Aβ38 (ng/L)	502 (266–625) ↓	1114 (819–1445)***
Aβ40 (ng/L)	3676 (2190–4748) ↓	7682 (6366–9809)***
Aβ42 (ng/L)	241 (144–405) ↓	754 (493–1058)***
sAPPα (ng/mL)	207 (157–259) ↓	416 (323–665)***
sAPPβ (ng/mL)	119 (92–170) ↓	280 (182–389)***
YKL40 (ng/mL)	122 (90–167)	137 (104–177)

Arrows indicating biomarker levels in iNPH in comparison with controls

ns non-significant

* p ≤ 0.05; ** p ≤ 0.01; *** p ≤ 0.001