The journal of nutrition, health & aging

, Volume 14, Issue 2, pp 83–89

The SNAQRC, an easy traffic light system as a first step in the recognition of undernutrition in residential care

Authors

    • Department of Nutrition and DieteticsVU University Medical Center
    • Department of Health Sciences, Faculty of Earth and Life SciencesVU University
    • Dutch Steering Group on Malnutrition
  • H.C.W. De Vet
    • EMGO Institute, Department of Epidemiology and BiostatisticsVU University Medical Center
  • C.M.E. Van Marissing
    • Department of Nutrition and DieteticsVU University Medical Center
    • Department of Health Sciences, Faculty of Earth and Life SciencesVU University
  • E.E.P.M. Stassen
    • Department of Nutrition and DieteticsVU University Medical Center
    • Department of Health Sciences, Faculty of Earth and Life SciencesVU University
  • J.E. Strijk
    • Department of Nutrition and DieteticsVU University Medical Center
    • EMGO Institute, Department of Epidemiology and BiostatisticsVU University Medical Center
  • M.A.E. Van Bokhorst-De Van Der Schueren
    • Department of Nutrition and DieteticsVU University Medical Center
    • Dutch Steering Group on Malnutrition
  • J.C.H. Horman
    • Dutch Steering Group on Malnutrition
  • J.M.G.A. Schols
    • Dutch Steering Group on Malnutrition
    • Department of General PracticeMaastricht University
    • Vivre
    • Department TranzoTilburg University
  • J.J. Van Binsbergen
    • Dutch Steering Group on Malnutrition
    • Department Primary CareRadboud University Nijmegen Medical Center
  • A. Eliens
    • Dutch Nurses’ Association
  • D.L. Knol
    • EMGO Institute, Department of Epidemiology and BiostatisticsVU University Medical Center
    • Department of Health Sciences, Faculty of Earth and Life SciencesVU University
    • Dutch Steering Group on Malnutrition
    • EMGO Institute, Department of Epidemiology and BiostatisticsVU University Medical Center
Article

DOI: 10.1007/s12603-009-0147-1

Cite this article as:
Kruizenga, H., De Vet, H., Van Marissing, C. et al. J Nutr Health Aging (2010) 14: 83. doi:10.1007/s12603-009-0147-1

Abstract

Objective

Development and validation of a quick and easy screening tool for the early detection of undernourished residents in nursing homes and residential homes.

Design

Multi-center, cross sectional observational study.

Setting

Nursing homes and residential homes.

Participants

The screening tool was developed in a total of 308 residents (development sample; sample A) and cross validated in a new sample of 720 residents (validation sample) consisting of 476 nursing home residents (Sample B1) and 244 residential home residents (sample B2).

Measurements

Patients were defined severely undernourished when they met at least one of the following criteria: BMI ≤ 20 kg/m2 and/or ≥ 5% unintentional weight loss in the past month and/or ≥ 10% unintentional weight loss in the past 6 months. Patients were defined as moderately undernourished if they met the following criteria: BMI 20.1–22 kg/m2 and/or 5–10% unintentional weight loss in the past six months. The most predictive questions (originally derived from previously developed screening instruments) of undernourishment were selected in sample A and cross validated in sample B. In a second stage BMI was added to the SNAQRC in sample B. The diagnostic accuracy of the screening tool in the development and validation samples was expressed in sensitivity, specificity, and the negative and positive predictive value.

Results

The four most predictive questions for undernutrition related to: unintentional weight loss more than 6 kg during the past 6 months and more than 3 kg in the past month, capability of eating and drinking with help, and decreased appetite during the past month. The diagnostic accuracy of these questions alone was insufficient (Se=45%, Sp=87%, PPV=50% and NPV=84%). However, combining the questions with measured BMI sufficiently improved the diagnostic accuracy (Se=87%, Sp=82%, PPV=59% and NPV=95%).

Conclusion

Early detection of undernourished nursing- and residential home residents is possible using four screening questions and measured BMI.

Key words

Undernutritionundernutrition screening toolnursing homeresidential homeSNAQ

Copyright information

© Serdi and Springer Verlag France 2010