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. 2011 Feb 16;36(6):1165–1170. doi: 10.1038/npp.2010.251

Table 1. Definitions and Descriptive Information About Outcomes (N=226).

Outcomes A/A (N=163) G allele carriers (N=63) Overall (N=226)
Primary: parent–child relationship Mean (SD) Mean (SD) Mean (SD)
Enjoyment of activities with parent: activities between child and his/her parents are rated according to the degree of pleasure, displeasure, or disinterest associated with them. 0.30 (1.06) 0.67 (1.17) 0.55 (1.16)
Parent–child arguments: number of parentchild arguments 9.07 (26.57) 5.4 (17.9) 7.83 (24.49)
Separation anxiety symptoms: DSM-IV symptoms of separation anxiety disorder 0.31 (0.83) 0.19 (0.77) 0.27 (0.81)
       
Secondary: prosocial behavior
Depressive symptoms: non-overlapping DSM-IV symptoms of major depression or dysthymia 0.65 (1.18) 0.67 (1.13) 0.66 (1.16)
Conduct symptoms: DSM-IV symptoms of conduct disorder 1.43 (1.57 1.34 (1.53) 1.40 (1.56)