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Prevalence and characteristics of orthorexia nervosa in a sample of university students in Italy.
Eat Weight Disord. 2018 Feb; 23(1):55-65.EW

Abstract

AIMS

Orthorexia nervosa (ON) has been recently defined as a pathological approach to feeding related to healthiness concerns and purity of food and/or feeding habits. This condition recently showed an increasing prevalence particularly among young adults. In order to investigate the prevalence of ON and its relationship with gender and nutritional style among young adults, we explored a sample of students from the University of Pisa, Italy.

METHODS

Assessments included the ORTO-15 questionnaire and a socio-demographic and eating habits form. Subjects were dichotomized for eating habits (i.e. standard vs vegetarian/vegan diet), gender, parents' educational level, type of high school attended, BMI (low vs high vs normal BMI). Chi square tests were performed to compare rates of subjects with overthreshold ORTO-15 scores, and Student's unpaired t test to compare mean scores between groups. Two Classification tree analyses with CHAID growing method were employed to identify the variables best predicting ON and ORTO-15 total score.

RESULTS

more than one-third of the sample showed ON symptoms (ORTO-15 ≥ 35), with higher rates among females. Tree analyses showed diet type to predict ON and ORTO-15 total score more than gender.

CONCLUSIONS

Our results seem to corroborate recent data highlighting similarities between ON and anorexia nervosa (AN). We propose an interpretation of ON as a phenotype of AN in the broader context of Feeding and eating disorders (FEDs) spectrum.

Authors+Show Affiliations

Department of Clinical and Experimental Medicine, University of Pisa, Via Roma 67, 56127, Pisa, Italy.Department of Clinical and Experimental Medicine, University of Pisa, Via Roma 67, 56127, Pisa, Italy. barbara.carpita1986@gmail.com.Department of Clinical and Experimental Medicine, University of Pisa, Via Roma 67, 56127, Pisa, Italy.Department of Clinical and Experimental Medicine, University of Pisa, Via Roma 67, 56127, Pisa, Italy.Department of Clinical and Experimental Medicine, University of Pisa, Via Roma 67, 56127, Pisa, Italy.Department of Clinical and Experimental Medicine, University of Pisa, Via Roma 67, 56127, Pisa, Italy.Department of Clinical and Experimental Medicine, University of Pisa, Via Roma 67, 56127, Pisa, Italy.Department of Clinical and Experimental Medicine, University of Pisa, Via Roma 67, 56127, Pisa, Italy.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

29134507

Citation

Dell'Osso, L, et al. "Prevalence and Characteristics of Orthorexia Nervosa in a Sample of University Students in Italy." Eating and Weight Disorders : EWD, vol. 23, no. 1, 2018, pp. 55-65.
Dell'Osso L, Carpita B, Muti D, et al. Prevalence and characteristics of orthorexia nervosa in a sample of university students in Italy. Eat Weight Disord. 2018;23(1):55-65.
Dell'Osso, L., Carpita, B., Muti, D., Cremone, I. M., Massimetti, G., Diadema, E., Gesi, C., & Carmassi, C. (2018). Prevalence and characteristics of orthorexia nervosa in a sample of university students in Italy. Eating and Weight Disorders : EWD, 23(1), 55-65. https://doi.org/10.1007/s40519-017-0460-3
Dell'Osso L, et al. Prevalence and Characteristics of Orthorexia Nervosa in a Sample of University Students in Italy. Eat Weight Disord. 2018;23(1):55-65. PubMed PMID: 29134507.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Prevalence and characteristics of orthorexia nervosa in a sample of university students in Italy. AU - Dell'Osso,L, AU - Carpita,Barbara, AU - Muti,D, AU - Cremone,I M, AU - Massimetti,G, AU - Diadema,E, AU - Gesi,C, AU - Carmassi,C, Y1 - 2017/11/13/ PY - 2017/08/04/received PY - 2017/10/24/accepted PY - 2017/11/15/pubmed PY - 2018/8/15/medline PY - 2017/11/15/entrez KW - Eating disorders KW - Healthy eating KW - Healthy food KW - Orthorexia nervosa KW - University population SP - 55 EP - 65 JF - Eating and weight disorders : EWD JO - Eat Weight Disord VL - 23 IS - 1 N2 - AIMS: Orthorexia nervosa (ON) has been recently defined as a pathological approach to feeding related to healthiness concerns and purity of food and/or feeding habits. This condition recently showed an increasing prevalence particularly among young adults. In order to investigate the prevalence of ON and its relationship with gender and nutritional style among young adults, we explored a sample of students from the University of Pisa, Italy. METHODS: Assessments included the ORTO-15 questionnaire and a socio-demographic and eating habits form. Subjects were dichotomized for eating habits (i.e. standard vs vegetarian/vegan diet), gender, parents' educational level, type of high school attended, BMI (low vs high vs normal BMI). Chi square tests were performed to compare rates of subjects with overthreshold ORTO-15 scores, and Student's unpaired t test to compare mean scores between groups. Two Classification tree analyses with CHAID growing method were employed to identify the variables best predicting ON and ORTO-15 total score. RESULTS: more than one-third of the sample showed ON symptoms (ORTO-15 ≥ 35), with higher rates among females. Tree analyses showed diet type to predict ON and ORTO-15 total score more than gender. CONCLUSIONS: Our results seem to corroborate recent data highlighting similarities between ON and anorexia nervosa (AN). We propose an interpretation of ON as a phenotype of AN in the broader context of Feeding and eating disorders (FEDs) spectrum. SN - 1590-1262 UR - https://www.unboundmedicine.com/medline/citation/29134507/Prevalence_and_characteristics_of_orthorexia_nervosa_in_a_sample_of_university_students_in_Italy_ L2 - https://dx.doi.org/10.1007/s40519-017-0460-3 DB - PRIME DP - Unbound Medicine ER -