Table 4.

ROC analysis of serum t-tau and YKL-40 compared between mild dementia (MD), moderate to severe dementia (MSD), and control group.

Comparison	AUC	95% CI	P	Cut-off	Sensitivity%	95% CI	Specificity%	95% CI
t-tau
C vs. MD	0.8488	0.7553–0.9423	<0.0001	>341.4	72.09	57.31–83.25%	70	48.10–85.45%
C vs. MSD	0.7294	0.5613–0.8975	0.0174	>324.8	64.71	41.30–82.69%	65	43.29–81.88%
MD vs. MSD	0.6607	0.5114–0.8101	0.0539	<377.9	58.82	36.01–78.39%	58.14	43.33–71.62%
YKL-40
C vs. MD	0.9128	0.8412–0.9843	<0.0001	>115.8	86.05	72.74–93.44%	85	63.96–94.76%
C vs. MSD	0.6471	0.4692–0.8249	0.1276	>90.60	52.94	30.96–73.83%	55	34.21–74.18%
MD vs. MSD	0.8263	0.7067–0.9458	<0.0001	<123.3	76.47	52.74–90.44%	76.74	62.26–86.85%