Table 3. Correlations between FBG, HbA1c, MoCA, disease duration, and imaging parameters.

Parameters	MoCA					FBG					HbA1c					Disease duration
	r	95% CI	P	PFDR		r	95% CI	P	PFDR		r	95% CI	P	PFDR		r	95% CI	P	PFDR
ALPS	0.080	–0.220, 0.367	0.592†	0.592		–0.382	–0.609, –0.098	0.008†	0.016		–0.088	–0.366, 0.205	0.557‡	0.592		–0.420	–0.637, –0.143	0.003†	0.008
PSMD	–0.425	–0.640, –0.149	0.003†	0.008		0.176	–0.126, 0.448	0.236†	0.378		0.105	–0.196, 0.388	0.483†	0.592		0.433	0.158, 0.646	0.002†	0.008

^†, Spearman; ^‡, Pearson. ALPS, analysis along the perivascular space; CI, confidence interval; FBG, fasting blood glucose; FDR, false discovery rate; HbA1c, glycosylated hemoglobin; MoCA, Montreal cognitive assessment; PSMD, peak width of skeletonized mean diffusivity.