Hemophilia morbidity, cognitive functioning, and academic achievement

Area of Science:

• Pediatric Hematology
• Neuroscience
• Developmental Psychology

Background:

• Hemophilia is a genetic bleeding disorder.
• Coordination and gait (CG) abnormalities are common complications in hemophilia.
• The impact of hemophilia morbidity on cognitive function and academic achievement requires further investigation.

Purpose of the Study:

• To evaluate the association between hemophilia morbidity, specifically coordination and gait (CG) abnormalities, and intellectual ability and academic achievement.
• To determine if CG abnormalities in children with hemophilia correlate with differences in academic performance.

Main Methods:

• Utilized data from the Hemophilia Growth and Development Study (HGDS) with 333 participants.
• Assessed coordination and gait (CG) abnormalities as a measure of hemophilia morbidity.
• Measured intellectual ability and academic achievement using standardized tests, including the Wide Range Achievement Test-Revised (WRAT-R).

Main Results:

• CG abnormalities were primarily linked to hemophilia-related morbidity.
• Participants with hemophilia performed within the average range for intellectual ability.
• A significant difference was observed in academic achievement, with participants without CG abnormalities scoring higher in Reading, Spelling, and Arithmetic compared to those with CG abnormalities.

Conclusions:

• Lowered academic achievement in children with hemophilia is associated with the presence of coordination and gait (CG) abnormalities.
• The functional severity of hemophilia, as indicated by CG issues, appears to negatively impact academic performance.
• These findings highlight the importance of addressing hemophilia-related morbidity to support educational outcomes in affected children.