European Spine Journal

, Volume 27, Issue 2, pp 293–297 | Cite as

Prevalence of idiopathic scoliosis in anorexia nervosa patients: results from a cross-sectional study

  • Fabio Zaina
  • Francesca Pesenti
  • Luca Persani
  • Paolo Capodaglio
  • Stefano Negrini
  • Nicoletta Polli
Original Article



A long debate exists about the connection between anorexia nervosa (AN) and scoliosis due to conflicting evidence. No study so far has evaluated the prevalence of scoliosis in patients with AN. The aim of the study is to evaluate the prevalence of idiopathic scoliosis in patients with AN.


Design: cross-sectional study. Study group: convenience sample of all patients matching the inclusion criteria. Control group: female participants coming from an epidemiological screening for scoliosis. Inclusion criteria: patients had a diagnosis of AN during adolescence according to the DSM-IV-TR criteria. We applied a two-level screening using a Bunnell scoliometer and a radiograph. We calculated the odds ratio compared with participants coming from a school screening.


Seventy-seven females with AN were compared to 816 females screened for scoliosis. The prevalence of scoliosis in the AN group was 16.9% (OR 5.77, 95% CI 3.12–10.67) with respect to the control group. If we consider as positive only those who received a scoliosis diagnosis during adolescence, the OR would be 3.15 (95% CI 1.55–6.42).


This is the first study performed on patients with AN showing a sixfold greater odds of presenting with scoliosis. A cause–effect relationship cannot be determined due to the design.


Scoliosis Anorexia Adolescent Idiopathic 



The authors are indebted to the all the staff, including MDs, nurses, psychologists, and nutritionists, involved in the management of AN in the Division of Eating Disorders at the Istituto Auxologico Italiano. This research was partially supported by funds of the Istituto Auxologico Italiano and of the Italian Ministry for University and Research, Rome, Italy (FIRB Grant: RBFR12DELS_004).

Compliance with ethical standards

Conflict of interest

The authors declare that they have no competing interests.


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Copyright information

© Springer-Verlag GmbH Germany 2017

Authors and Affiliations

  1. 1.ISICO (Italian Scientific Spine Institute)MilanItaly
  2. 2.Division of Eating DisordersIRCCS Istituto Auxologico ItalianoMilanItaly
  3. 3.Department of Clinical Sciences and Community HealthUniversity of MilanMilanItaly
  4. 4.Rehabilitation UnitIstituto Auxologico Italiano IRCCSPiancavalloItaly
  5. 5.Department of Clinical and Experimental SciencesUniversity of BresciaBresciaItaly
  6. 6.IRCCS Don Gnocchi FoundationMilanItaly

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