Table 1.

Participant characteristics

HR group (N = 34)LR group (N = 41)p value
Gender (F/M)15/1917/240.999a
Age (mo)62 ± 362 ± 30.490b
Nonverbal IQc110 ± 13111 ± 100.472b
Parental educational level (low/middle/high)7/9/1810/16/150.349a

  • Values are given as mean ± SD.

  • ↵aFisher's exact test.

  • ↵bPaired t test.

  • ↵cStandardized scores with population mean (mean = 100, SD = 15).