Body mass index and in-hospital mortality in anorexia nervosa: data from the Japanese Diagnosis Procedure Combination Database

  • Mitsuhiro Nakamura
  • Hideo Yasunaga
  • Takafumi Shimada
  • Hiromasa Horiguchi
  • Shinya Matsuda
  • Kiyohide Fushimi
Brief Report

DOI: 10.1007/s40519-013-0051-x

Cite this article as:
Nakamura, M., Yasunaga, H., Shimada, T. et al. Eat Weight Disord (2013) 18: 437. doi:10.1007/s40519-013-0051-x

Abstract

One of the main purposes of admission for anorexia nervosa is to manage acute medical conditions related to this condition. Factors associated with in-hospital mortality in anorexia nervosa remain unclear. This study describes the clinical features of anorexia nervosa patients requiring hospitalization in Japan. We analyzed the association between in-hospital mortality and body mass index upon admission using a currently available, nationwide hospital-based database. We identified 669 eligible patients with anorexia nervosa (BMI ≤ 16.5) from 229 hospitals between July and December, 2010. More than 90 % of the patients were female and 100 patients were admitted involuntarily. The average body mass index was 13.1, and the in-hospital mortality rate was 0.7 %. Five patients who died had a BMI under 11, indicating that patients with an extremely low BMI may be likely to die, despite admission.

Keywords

Anorexia nervosa Body mass index In-hospital mortality Refeeding methods Japan 

Copyright information

© Springer International Publishing Switzerland 2013

Authors and Affiliations

  • Mitsuhiro Nakamura
    • 1
    • 2
  • Hideo Yasunaga
    • 3
  • Takafumi Shimada
    • 4
  • Hiromasa Horiguchi
    • 3
  • Shinya Matsuda
    • 5
  • Kiyohide Fushimi
    • 6
  1. 1.Department of PsychiatryYokohama Camellia HospitalYokohamaJapan
  2. 2.Department of Mental Health, Graduate School of MedicineThe University of TokyoTokyoJapan
  3. 3.Department of Health Management and Policy, Graduate School of MedicineThe University of TokyoTokyoJapan
  4. 4.Department of Neuropsychiatry, Graduate School of MedicineThe University of TokyoTokyoJapan
  5. 5.Department of Preventive Medicine and Community HealthUniversity of Occupational and Environmental HealthFukuokaJapan
  6. 6.Department of Health Policy and InformaticsTokyo Medical and Dental University Graduate School of MedicineTokyoJapan

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