Table 1.

Participant characteristics

Participant characteristics
GroupXXXYXXXXXYXYYXXYYXXXXYAllometric
sample
n877928562519579 (34 F)
Age, y
Mean (SD)12.7 (5.1)12.7 (4.6)12.3 (5.7)12.7 (4.9)12.2 (4.9)14.0 (5.5)12.9 (4.8)13.0 (0.6)
Range5.4–25.15.2–25.55.0–24.85.2–26.05.7–23.05.0–23.07.7–17.212.0–14.0
FSIQ
Mean (SD)*113.9 (12.3)116.6 (13.3)94.1 (14.2)97.6 (17.1)91.0 (14.6)86.9 (12.9)55.7 (7.23)116.3 (12.4)
SES
Mean (SD)*47.3 (17.1)48.0 (21.3)40.9 (15.9)56.0 (20.7)58.1 (22.4)45.5 (22.6)68.8 (22.4)34.1 (19.7)
  • FSIQ, Full scale IQ; SES, socioeconomic status.

  • * p < 0.01 for omnibus test of significant variation across groups in core sample.