Table 1. ROS/MAP cohort overview.

Postmortem interval refers to the time between death and sample preservation. BMI = body mass index. IQR = interquartile range, i.e., middle 50% of the data.

Total samples	N = 500
Sex
Female	352 (70.4%)
Male	148 (29.6%)
Postmortem interval (hours)	6.6 (5.2, 8.7)
BMI	25.2 (22.5, 28.2)
Years of education	16.00 (13.00, 18.00)
Age at death	91 (87, 95)
APOE4 alleles
0	374 (75%)
1	121 (24%)
2	5 (1%)
Clinical diagnosis at death
AD	220 (44%)
Mild cognitive impairment (MCI)	119 (23.8%)
No cognitive impairment (NCI)	153 (30.6%)
Other	8 (1.6%)
Format: N (%) or median (IQR)