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. Author manuscript; available in PMC: 2007 Nov 1.
Published in final edited form as: Child Abuse Negl. 2006 Nov 9;30(11):1239–1255. doi: 10.1016/j.chiabu.2006.04.008

Table 1.

Demographic and Background Variables for ADHD and Comparison Groups

Variable ADHD(N=140)M (SD) Comparison(N=88)M (SD) p
Age (Months) 116.0 (20.2) 113.2 (19.8) Ns
Income (1-9) 6.2 (2.7) 6.7 (2.5) Ns
Maternal Education 4.7 (1.0) 4.9 (1.0) Ns
White (%) 56.7 46.6 Ns
Public assistance (%) 15.0 11.4 Ns
Two-parent household (%) 66.3 77.3 Ns
Adopted (%) 21.9 4.5 <.01

Note: Comparisons made by independent-sample t-tests for continuous variables or X2 tests for categorical variables.