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  • Title: The Neurological Predictor Scale: A predictive tool for long-term core cognitive outcomes in survivors of childhood brain tumors.
    Author: Taiwo Z, Na S, King TZ.
    Journal: Pediatr Blood Cancer; 2017 Jan; 64(1):172-179. PubMed ID: 27566994.
    Abstract:
    OBJECTIVE: Prior research has demonstrated the reliability and validity of the Neurological Predictor Scale (NPS) in relation to intelligence and adaptive functioning in survivors of pediatric brain tumors. To extend these findings, this study examined the relationship between the NPS and core neurocognitive skills hypothesized to underlie broad outcome measures of IQ and adaptive functioning. METHOD: Sixty-one adulthood survivors of childhood brain cancers (Mage = 24 years, SD = 6) on average 16 years after diagnosis completed neuropsychological assessments examining attention (Wechsler Memory Scale Digit Span Forward), processing speed (Symbol Digit Modalities Test), and working memory (Auditory Consonant Trigrams). The medical information necessary to compute the NPS was extracted from a thorough medical record review. RESULTS: The NPS score significantly predicted processing speed (R2 = 0.28, P < 0.05) and working memory (R2 = 0.15, P < .05) outcomes over and above each individual risk factor. NPS was significantly associated with attention outcomes after covarying for age (R2 = 0.13, P < 0.05) over and above each risk factor except presence of hormone deficiency, hydrocephalus, and chemotherapy. These three variables were not significantly associated with attention outcomes in this sample. CONCLUSIONS: Our findings suggest that survivors with more treatments and neurological sequelae experience greater deficits in working memory, processing speed, and attention. Further, the NPS affords the ability to predict how cumulative neurological factors impact core cognitive outcomes many years after initial diagnosis.
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