TABLE 1.

Sociodemographic characteristics and other co‐variates in the subset of the WHICAP Ancillary Study of Oral Health participants with available data on clinical, microbial, and serological features of periodontitis and brain MRI imaging (N = 486).

Age (years)	Mean (SD)	74.1 (5.8)
	Range	63.5‐98.2
	<69	134 (27.6%)
	70‐74	177 (36.4%)
	75‐79	83 (17.1%)
	80+	92 (18.9%)
Sex	Female	307 (63.2%)
Race/ethnicity	Hispanic	190 (39.1%)
	Non‐Hispanic Black	164 (33.7%)
	Non‐Hispanic White	132 (27.2%)
	Other	0 (0.0%)
Educational attainment	Low	155 (32.0%)
	Middle	220 (45.5%)
	High	109 (22.5%)
Hypertension	Present	375 (77.2%)
Cardiovascular disease	Present	154 (31.7%)
Smoking	Current/Former	224 (46.1%)
	Never	262 (53.9%)
APOE genotype	Present	152 (31.3%)