Table 1

Demographic and microscopic features of the depressed and control groups

	Depressed group n=20	Control group n=20	Test statistic	p Value	95% CI
Age (y)^1-150	75.0 (7.37)	74.2 (7.46)	0.30	0.77	−5.45 to 4.05
Sex (M/F)	7/13	7/13		1.00
Age of onset of depression (y)^1-150	63.8 (14.83)	NA	NA	NA
Postmortem delay (h)^1-150	34.55 (22.72)	28.0 (16.18)	1.05	0.30	−19.18 to 6.08
Plaque count (/mm)^1-150	1.5 (1.74)	1.36 (2.96)	134	0.07
Tangle count (/mm)^1-150	0.058 (0.20)	0.006 (0.014)	184	0.68
Braak stage^1-151	1	1	6.25	0.18
Lewy body count (cm²)^1-150	0 (0)	0 (0)	NA	1.00
Total microvascular^1-151	4.0	4.5	7.24	0.56
Frontal microvascular^1-151	1.0	1.0	0.70	0.79

↵1-150 Values are mean (SD) and comparisons are made using unpairedt tests except for plaque and tangle scores which are Mann-Whitney tests.
↵1-151 Values are medians and comparisons are made using Fisher-Freeman-Halton tests.