Lantz Elin L, Gillberg Christopher, Råstam Maria, Wentz Elisabet, Lowe Michael R
Department of Psychology, Drexel University, Philadelphia, Pennsylvania.
Gillberg Neuropsychiatry Center, University of Göteborg, Göteborg, Sweden.
Int J Eat Disord. 2017 Jul;50(7):852-855. doi: 10.1002/eat.22718. Epub 2017 Apr 22.
A finding consistent with the transdiagnostic approach to eating disorders is that about half of those with restricting anorexia nervosa (AN) eventually undergo a transition to the binge/purge (BP) subtype or to bulimia nervosa. Given evidence that individuals with bulimic symptoms exhibit elevated weights premorbidly, we tested the hypothesis that among those with AN, highest premorbid BMI would predict which individuals with AN would develop AN-BP.
The current study used longitudinal data from a community sample of adolescents with AN in Sweden. Premorbid weights were obtained from growth charts, and participants were re-assessed at 6, 10, and 18 years after first presentation with AN.
A greater highest premorbid BMI z score predicted a greater likelihood of developing binge/purge symptoms over 18 years.
Among individuals who develop an eating disorder, premorbid BMI may be implicated in the type and course of the eating disorder that emerges.
与进食障碍的跨诊断方法相一致的一个发现是，约一半的限制型神经性厌食症（AN）患者最终会转变为暴食/清除（BP）亚型或神经性贪食症。鉴于有证据表明有暴食症状的个体病前体重升高，我们检验了这样一个假设：在患有AN的个体中，病前最高体重指数（BMI）将预测哪些AN患者会发展为AN-BP。
本研究使用了来自瑞典一个青少年AN社区样本的纵向数据。病前体重从生长图表中获取，参与者在首次出现AN后的6年、10年和18年进行重新评估。
病前最高BMI z评分越高，在18年中出现暴食/清除症状的可能性越大。
在出现进食障碍的个体中，病前BMI可能与所出现的进食障碍的类型和病程有关。
