Estimated height from knee-height in caucasian elderly: Implications on nutritional status by mini nutritional assessment

E. Cereda, S. Bertoli, A. Vanotti, A. Battezzati

Research output: Contribution to journalArticle

Abstract

Objectives: To investigate if the use of estimeted height (EH) by currently available prediction formulas might affect the screening and outcome prediction attitudes of both the Mini Nutritional Assessment (MNA) and its short-form version (MNA-SF). Design: A 6-month observational study. Setting: Two long-term cares of the province of Como. Participants: 266 resident elderly (102 men, 164 women; mean age±SD: 80.4±8.6 years). Measurements: Subjects were studied by anthropometry (weight, standing height, knee-height, arm and calf circumferences, triceps skinfold) and biochemistry (albumin and prealbumin). Nutritional status was assessed using both MNA and MNA-SF. At 6 months, major outcome were: death, infections and bedsores. Results: In overall population, prediction formulas significantly underestimated real height. The bias by Italian-specific equation was higher than that by nationally-representative formulas for white Americans. The use of EHs produced significant differences in body mass index (BMI) but these did not affect nutritional status scoring by MNA and MNA-SF (r>0.99, p0.9). Moreover, similar degrees of correlation were found between nutritional parameters and both MNA and MNA-SF scores by BMI from SH and EHs. After 6 months, major complications occurred in twenty-eight patients (11.6%). The use EHs did not affect the distribution of events among MNA and MNA-SF nutritional classes. Conclusion: In Italian elderly, height prediction by nationally representative equations for white Americans should be preferred to that by ethnic-specifc formula. However, the use of both models does not seem to affect nutritional screening and outcome prediction by MNA and MNA-SF.

Original languageEnglish
Pages (from-to)16-22
Number of pages7
JournalJournal of Nutrition, Health and Aging
Volume14
Issue number1
DOIs
Publication statusPublished - Jan 2010

Keywords

  • Body mass index (BMI)
  • Estimated height
  • Mini nutritional assessment (MNA)
  • Nutritional status
  • Outcome

ASJC Scopus subject areas

  • Medicine (miscellaneous)
  • Geriatrics and Gerontology
  • Nutrition and Dietetics

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