Faculty of Social Sciences, Psychology Department, Lund University, Lund, Sweden.
Faculty of Arts and Sciences, Holy Spirit University of Kaslik (USEK), Jounieh, Lebanon.
Eat Weight Disord. 2022 Mar;27(2):483-493. doi: 10.1007/s40519-021-01186-5. Epub 2021 Apr 11.
To explore the possible moderating relation between impulsive behavior and maladaptive personality traits in regards to orthorexia nervosa (ON).
This cross-sectional study was conducted between July and December 2019 and recruited 519 Lebanese adults from seven community pharmacies randomly selected from a list provided by the Lebanese Order of Pharmacists. The Teruel Orthorexia Scale (TOS) was employed to assess orthorexic eating tendencies, the I-8 measured impulsivity and the Personality Inventory for DSM-5 (PID) evaluated maladaptive personality traits.
Our results showed that, for I-8 subscales, only higher perseverance (B = 0.31) was significantly associated with higher ON. In regard to PID-5 subscales, only higher negative affect (B = - 0.34) was significantly associated with lower ON. Furthermore, significant interactions were found between personality traits and impulsivity to predict TOS-ON.
The current results show that female gender, maladaptive personality traits and impulsivity present contributing factors regarding orthorexic eating. Certain impulsivity dimensions were confirmed to interact with personality traits in the prediction of orthorexic eating thereby highlighting possible risk factors and psychopathological mechanisms.
Level V, cross-sectional descriptive study.
探讨冲动行为与适应不良人格特质在神经性厌食症（ON）方面可能存在的调节关系。
本横断面研究于 2019 年 7 月至 12 月进行，从黎巴嫩药剂师协会提供的名单中随机选择了 7 家社区药店，招募了 519 名黎巴嫩成年人参与。采用特鲁埃尔饮食强迫症量表（TOS）评估饮食强迫症倾向，采用冲动量表第 8 版（I-8）评估冲动性，采用 DSM-5 人格量表（PID）评估适应不良人格特质。
结果显示，对于 I-8 分量表，只有更高的毅力（B=0.31）与更高的 ON 显著相关。在 PID-5 分量表中，只有更高的负性情绪（B=-0.34）与较低的 ON 显著相关。此外，还发现人格特质和冲动性之间存在显著的交互作用，可预测 TOS-ON。
目前的结果表明，女性、适应不良人格特质和冲动性是与饮食强迫症相关的因素。某些冲动性维度与人格特质相互作用，共同预测饮食强迫症，从而突出了可能的风险因素和精神病理学机制。
五级，横断面描述性研究。
