Table 1.

Characteristics of deceased MAP participants by tertile of brain bromine concentrations (n = 215)

	Bromine levels by tertile
	1	2	3
Mean, μg/g	0.84	1.5	3.6
Median (IQR)	0.91(0.69–1.00)	1.48(1.32–1.64)	2.96(2.35–4.46)
Age at death, years ± Standard deviation	88.6 ± 5.9	90.3 ± 5.4	89.0 ± 6.4
Women, number (%)	47 (67)	47 (63)	51 (73)
Education,±Standard deviation	14.7 ± 2.8	14.8 ± 2.4	14.4 ± 2.5
APOE ε4, number (%)	10(14)	22 (29)	15 (21)
Clinical dementia diagnosis before death, number (%)	15 (21%)	30 (40%)	28 (40%)
Alzheimer’s disease diagnosis*, number %	34 (49%)	47 (63%)	51 (73%)

IQR, Intra-quartile range.

^∗NIA-Reagan diagnosis of Alzheimer’s Disease.