Screening for orthorexia nervosa among nursing students: prevalence and associations between the Chinese version of the Düsseldorf Orthorexia Scale and the Chinese version of the Orthorexia Nervosa Inventory
Issued Date
2026-03-23
Resource Type
eISSN
2296861X
Scopus ID
2-s2.0-105038053086
Journal Title
Frontiers in Nutrition
Volume
13
Rights Holder(s)
SCOPUS
Bibliographic Citation
Frontiers in Nutrition Vol.13 (2026)
Suggested Citation
Yan F., Peng Y., Sun X., Zhang H. Screening for orthorexia nervosa among nursing students: prevalence and associations between the Chinese version of the Düsseldorf Orthorexia Scale and the Chinese version of the Orthorexia Nervosa Inventory. Frontiers in Nutrition Vol.13 (2026). doi:10.3389/fnut.2026.1767114 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/116727
Title
Screening for orthorexia nervosa among nursing students: prevalence and associations between the Chinese version of the Düsseldorf Orthorexia Scale and the Chinese version of the Orthorexia Nervosa Inventory
Corresponding Author(s)
Other Contributor(s)
Abstract
Aim – To estimate orthorexia nervosa (ON) screening prevalence and risk stratification among Chinese nursing students, examine associations of sex, grade and BMI with ON screening positivity, and describe symptom severity using the Chinese Orthorexia Nervosa Inventory (C-ONI). Design – Cross-sectional survey. Methods – Undergraduate nursing students (n = 693; effective response rate 96.25%) completed the Chinese Düsseldorf Orthorexia Scale (C-DOS) and C-ONI. ON screening positivity was defined as C-DOS ≥30 with three-level risk stratification. Wilson 95% CIs were calculated. Welch's ANOVA compared C-ONI scores across C-DOS strata. Multivariable logistic regression tested correlates (sex, grade, BMI). Agreement between dichotomized C-DOS and ONI (C-ONI ≥72) was examined. Results – C-DOS classified 76.0% as ON absent, 10.2% at risk, and 13.7% ON present (95% CI: 11.2%−16.5%). C-ONI total scores increased across strata (42.3 ± 10.2, 58.8 ± 8.7, 70.8 ± 11.9; all p < 0.001). Dichotomized agreement was 90.6% (628/693) with 9.4% discordance (7.9% C-DOS-only; 1.4% ONI-only). Females had lower odds of ON screening positivity than males (OR = 0.423, 95% CI: 0.264–0.678; p < 0.001); BMI and grade were not significant. Conclusions – ON screening positivity was 13.7% in Chinese nursing students with a clear risk–severity gradient. Although instruments largely agreed, non-overlap suggests prevalence estimates and individual classification depends on tool/cut-off; validation against clinical anchor criteria is needed.