Comparison Between Chronological and Mental Age (Years) in 3 Siblings With CH

Patient 1Patient 2Patient 3
Chronological Age at diagnosis14.87.70.5
Chronological Age at evaluation21147
Mental Age at evaluation2.07.05.1
  • Mental age is the average of subtest age equivalents for Mullen (Patient 1), Kaufman Assessment Battery for Children, Second Edition (KABC-II) Nonverbal Index (Patient 2), and KABC-II Fluid/Crystallized Index (Patient 3).