Table 1.

Demographic information for respondents and the affected child

Demographic variables	Respondent (N = 19)	Affected child (N = 15)
Gender	10/15 mother only (67%) 1/15 father only (7%) 4/15 both parents (27%)	4/15 female (27%) 11/15 male (73%)a
Average age (years)	34.0 ± 10.1 (34–72 years)	9.0 ± 6.4 (1–25 years)
Local origin	14 Caucasian, 3 Asian, 2 preferred not to respond	12 Caucasian, 2 Asian, 1 > 1 race
Ethnicity	1/19 Hispanic (5.2%)	1/15 Hispanic (7%)
Age at diagnosis	n/a	Mean: 6.2 ± 6.2 (birth to 25 years)

^aThe skewed female/male ratio is noted, but the gender difference is not as striking in a larger cohort of individuals known to the authors