Developmental dyscalculia: a prospective six‐year follow‐up

摘要: To determine the natural history of developmental dyscalculia (DC) and factors impacting on its prognosis, we performed a prospective six-year longitudinal study. One hundred forty children normal intelligence diagnosed with DC in fifth grade elementary school were re-examined for three six years later, eighth (n=123) eleventh (n=104; 41 males, 63 females) grades respectively. Mean age was 11 1 month (SD 4 months), 14 2 months month), 17 5 months). The assessment included standardized arithmetic, reading writing tests, behavioural rating scales, information socioeconomic status, educational interventions, familial learning problems. Participants recategorized as having if their score arithmetic test not more than centile grade. At follow-up, 99/104 (95%) still performing poorly scoring within lowest quartile grade, 42/104 (40%) DC. Chronicity associated severity (p<0.05), lower IQ (p<0.01), inattention problems (p<0.01). Thus, is an enduring specific difficulty,* persisting into late adolescence almost half affected individuals.