Does cognitive functioning improve with weight restoration? An examination of changes in intelligence quotient scores in adolescents with anorexia nervosa before and after treatment.

IF 3.5 3区医学 Q2 PSYCHIATRY

Eating Disorders Pub Date : 2025-09-10 DOI:10.1080/10640266.2025.2552367

Jiana Schnabel, Elsie Jang, Marita Cooper, Lauren B Alloy, C Alix Timko

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引用次数: 0

Abstract

Intelligence Quotient (IQ) scores, typically considered stable throughout life, may be impacted by anorexia nervosa (AN). This study investigated whether IQ scores change following treatment in adolescents with AN (N = 110; age = 14.65 ± 2.49 years; 85% female). We analyzed changes in vocabulary, matrix reasoning, and full-scale IQ (FSIQ-2) scores on the Wechsler Abbreviated Scale of Intelligence, with developmental weight suppression and duration of illness as covariates. Results indicated end of treatment improvements in vocabulary (F(1, 107) = 7.46, p = .01, η_p² = .07), matrix reasoning (F(1, 107) = 4.44, p = .04, η_p² = .04), and FSIQ-2 (F(1, 107) = 11.00, p < .01, η_p² = .09) scores. A shorter illness duration was associated with greater gains in vocabulary (p = .04) and FSIQ-2 (p = .02) scores. These findings suggest that IQ scores can improve throughout treatment, with shorter illness duration linked to greater improvements, underscoring the importance of early nutritional intervention.

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体重恢复后认知功能会改善吗？青少年神经性厌食症治疗前后智商分数变化的研究。

智商（IQ）分数，通常被认为是一生稳定的，可能受到神经性厌食症（AN）的影响。本研究探讨了青少年AN （N = 110；年龄= 14.65±2.49岁；85%为女性）治疗后智商得分的变化。我们以发育性体重抑制和疾病持续时间为协变量，分析了词汇量、矩阵推理和韦氏智力简略量表上的全面智商（FSIQ-2）得分的变化。结果显示治疗结束时词汇量有所改善(F(1,107) = 7.46, p =。01, ηp2 =。07)，矩阵推理(F(1,107) = 4.44, p =。04, ηp =。04), FSIQ-2 (F(1,107) = 11.00, p p2 =。09年)分数。疾病持续时间越短，词汇量（p = 0.04）和FSIQ-2 （p = 0.02）得分越高。这些发现表明，在整个治疗过程中，智商得分可以得到改善，病程越短，改善越大，这强调了早期营养干预的重要性。

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来源期刊

Eating Disorders PSYCHIATRY-PSYCHOLOGY

CiteScore

7.70

自引率

9.10%

发文量

期刊介绍： Eating Disorders is contemporary and wide ranging, and takes a fundamentally practical, humanistic, compassionate view of clients and their presenting problems. You’ll find a multidisciplinary perspective on clinical issues and prevention research that considers the essential cultural, social, familial, and personal elements that not only foster eating-related problems, but also furnish clues that facilitate the most effective possible therapies and treatment approaches.