Table 1.

Descriptive statistics of the study sample are reported for continuous (mean, standard deviation) and categorical variables (percent). The descriptive statistics are stratified by seizure occurrence (defined as having a seizure 3 years before Dementia with Lewy bodies diagnosis to any time after diagnosis) to identify any initial difference for seizure occurrence.

	No seizure occurrence (N = 1340)	Seizure occurrence (N = 36)	Overall (N = 1376)
Age atdiagnosis (years, mean (SD))	74.09 (8.57)	74.97 (9.57)	74.12 (8.59)
Female (%)	344 (25.7)	14 (38.9)	358 (26.0)
Race (%)
White	1192 (90.1)	31 (91.2)	1223 (90.1)
Black or African American	79 (6.0)	1 (2.9)	80 (5.9)
American Indian or Alaska Native	9 (0.7)	0 (0.0)	9 (0.7)
Native Hawaiian or Pacific Islander	1 (0.1)	0 (0.0)	1 (0.1)
Asian	13 (1.0)	1 (2.9)	14 (1.0)
Multiracial	29 (2.2)	1 (2.9)	30 (2.2)
Follow-up time (years, mean (SD))	1.95 (2.17)	1.66 (2.02)	1.95 (2.17)
Deceased (%)	777 (58.0)	26 (72.2)	803 (58.4)