Table 8.

Correlation between CSF biomarkers and demographics in all groups^∗

Demographics	CSF biomarker
YKL-40	Catalase
Age	0.300**	0.093
Disease duration∗	−0.133	−0.222
Abeta (1–42)	−0.100	−0.058
t-Tau	0.397***	0.044
p-Tau	0.197*	0.084
YKL-40	x	−0.240*

Abbreviation: CSF, cerebrospinal fluid.

NOTE. Bivariate Spearman correlation coefficients were calculated (n = 88–101). *P < .05; **P < .01; ***P < .001.

^∗n = 26 (YKL-40) and 19 (catalase).