. 2026 Jul 2;16(8):654. doi: 10.21037/qims-2025-1-2814

Table 2. Group comparisons of imaging parameters.

Variables	T2DM-MCI (n=24)	T2DM-nMCI (n=23)	HCs (n=26)	P_FDR
DTI-ALPS	1.324±0.170^‡	1.362±0.142^‡	1.465±0.104	0.005^a
PSMD (×10⁻⁴ mm²/s)	2.139 (1.895, 2.306)^†,‡	1.868 (1.777, 2.026)	1.888 (1.776, 2.111)	0.025^b

Data are presented as mean ± standard deviation or median (25^th and 75^th percentile). ^†, compared to the T2DM-nMCI group, P<0.05; ^‡, compared to the HC group, P<0.05; ^a, one-way ANOVA; ^b, Kruskal-Wallis test. ANOVA, analysis of variance; DTI-ALPS, diffusion tensor imaging along the perivascular space; FDR, false discovery rate; HCs, healthy controls; PSMD, peak width of skeletonized mean diffusivity; T2DM-MCI, type 2 diabetes mellitus with mild cognitive impairment; T2DM-nMCI, type 2 diabetes mellitus without mild cognitive impairment.