Table 2.

Demographic and etiological covariates evaluated in NBC and NBAC models. All covariates reported by at least 9 children and 9 adults (approximately 1% of each sample) were evaluated. Number of patients reporting each covariate is shown.

Covariate	Adults reporting covariate	Children reporting covariate
Demographic covariates
Age	682 (100%)	844 (100%)
Gender	682 (100%)	844 (100%)
Etiology
Tuberous Sclerosis (TS)	9 (1.3%)	79 (9.3%)
Brain Trauma	90 (13%)	45 (5.3%)
Hematoma	26 (3.8%)	15 (1.8%)
Infectious Disease	58 (8.5%)	33 (3.9%)
Stroke	15 (2.2%)	26 (3.1%)
Genetic Abnormalities	15 (2.2%)	25 (3.0%)
Lack of oxygen at birth	20 (2.9%)	28 (3.3%)
Fever, Metabolic Disorder, or Electrolyte disturbance	13 (1.9%)	15 (1.8%)
Brain malformation or injury during fetal development	48 (7.0%)	73 (8.6%)
Brain tumor or surgery	119 (17%)	58 (6.9%)
Maternal drug use or unspecified congenital disorder	49 (7.2%)	95 (11%)