Neuropsychological functioning in adolescents with diabetes

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Abstract
Investigated the relationship between disease variables, neuropsychological performance, and psychosocial status in adolescents with Insulin Dependent Diabetes Mellitus (IDDM). The study group consisted of 85 adolescents, aged 14 to 16.5 years who had been diabetic for longer than 12 months. Parameters of both recent and long-term metabolic control were determined, including diabetic incidents such as severe hypoglycemia or ketoacidosis. The mothers completed standardised measures of adolescent adjustment, and the adolescents provided self-reports of psychosocial status. Neuropsychological functioning was evaluated with standardised tests of verbal and nonverbal intelligence, memory and new learning, visuo-graphic skills, mental flexibility, and problem-solving ability. Using retrospective accounts of disease history, there was no relationship between neuropsychological functioning and variables such as age of onset, chronic poor control, or major metabolic crises. The findings emphasise the need for a long-term, prospective study of a cohort of diabetic children from the time of diagnosis to clarify causal relationships, if any, between illness variables, neuropsychological performance, and psychosocial factors.