Table 2

Participant characteristics
Group
Measure pASD control
Age (mean years ± SD) 38.70 ± 6.29 35.84 ± 10.00
Gender (% male) 34.8% 42.9%
Ethnicity
 % Caucasian 91.3% 96.4%
 % African American 8.7% 3.6%
Handedness scorea .79 ± .36 .68 ± .49
SES (Hollingshead)b 50.63 ± 9.49 50.07 ± 8.51
Child SCQ score (pASD only) 21.96 ± 4.09

pASD = parent of a child with ASD; SCQ = Social Communication Questionnaire.

aHandedness score from the Annett handedness questionnaire, in which +1 is completely right handed and −1 is completely left-handed.

bSES = Socioeconomic status, as assessed with the Hollingshead Four-Factor Index of Social Status.

McFadden et al.

McFadden et al. BMC Psychiatry 2012 12:213   doi:10.1186/1471-244X-12-213

Open Data