Department of Nutrition and Food Processing, Al-Huson University College, Al-Balqa Applied University, 21510, Al-Huson, P.O. Box 50, Jordan.
Department of Clinical Nutrition and Dietetics, Faculty of Applied Health Sciences, The Hashemite University, P.O. Box 330127, Zarqa 13133, Jordan.
Clin Nutr ESPEN. 2020 Dec;40:144-148. doi: 10.1016/j.clnesp.2020.09.175. Epub 2020 Oct 17.
BACKGROUND/AIMS: Orthorexia Nervosa (ON) is defined as an excessive concern in choosing and preparing of meals according to strict rules. The aims of this study were to determine the prevalence of ON among nutrition students and nutritionists and to identify the related variables affected by the ON tendency.
This cross-sectional study was carried out in July and August of 2019 among 421 nutrition students from six universities, in addition to nutritionists in Jordan. Participants completed questionnaire related to individual characteristics and the ORTO-15 scale. Orthorexia Nervosa (ON) tendency was measured using ORTO-15 questionnaire, referring to different diagnostic thresholds (40/35). p < 0.05 was accepted as statistically significant.
Orthorexia had 72.0% prevalence in our sample using the 40-point threshold; the figure was reasonably lower with the 35-point threshold (31.8%). Also, ON tendency was significantly affected by BMI categories (p = 0.007) and gender (p = 0.043) at 35-point threshold. Males have more tendency (39.4%) than females (28.6%) (p = 0.029).
The results of this study highlight the magnitude of ON in Jordan. Using cut-off at 35 is preferable than cut-off at 40 to identify factors influencing ON. Moreover, ON tendency is affected by gender and BMI and not affected by educational level.
背景/目的：饮食强迫症（ON）被定义为根据严格的规则过度关注选择和准备膳食。本研究的目的是确定营养学生和营养师中饮食强迫症的患病率，并确定受饮食强迫症倾向影响的相关变量。
本横断面研究于 2019 年 7 月至 8 月在六所大学的 421 名营养学生以及约旦的营养师中进行。参与者完成了与个人特征和 ORTO-15 量表相关的问卷。采用 ORTO-15 问卷测量饮食强迫症（ON）倾向，参考不同的诊断阈值（40/35）。p<0.05 被认为具有统计学意义。
使用 40 分阈值，我们的样本中饮食强迫症的患病率为 72.0%；使用 35 分阈值，这个数字合理地降低到 31.8%。此外，ON 倾向在 35 分阈值下显著受到 BMI 类别（p=0.007）和性别（p=0.043）的影响。男性比女性更倾向于饮食强迫症（39.4%比 28.6%）（p=0.029）。
本研究结果强调了饮食强迫症在约旦的严重程度。使用 35 分的截止值比使用 40 分的截止值更能识别影响饮食强迫症的因素。此外，ON 倾向受性别和 BMI 影响，不受教育程度影响。
