Psychometric Evaluation Of Appetite Questionnaires In Elderly Polish Patients With Heart Failure
Received 12 July 2019
Accepted for publication 13 September 2019
Published 16 October 2019 Volume 2019:13 Pages 1751—1759
Checked for plagiarism Yes
Review by Single anonymous peer review
Peer reviewer comments 2
Editor who approved publication: Dr Johnny Chen
Marta Wleklik,1 Magdalena Lisiak,1 Christina Andreae,2–4 Izabella Uchmanowicz1
1Department of Clinical Nursing, Wrocław Medical University, Wroclaw, Poland; 2Division of Nursing Science, Linköping University, Linköping, Sweden; 3Centre for Clinical Research Sörmland, Uppsala University, Uppsala, Sweden; 4Department of Medicine, Region Sörmland, Nyköping, Sweden
Correspondence: Izabella Uchmanowicz
Department of Clinical Nursing, Faculty of Health Sciences, Wrocław Medical University, Bartla 5, Wroclaw 51-618, Poland
Tel +48 71 784 18 24
Fax +48 71 341 95 33
Purpose: Loss of appetite is caused by multifaceted disorders and affects an average of 40% of patients with heart failure (HF). The Council on Nutrition Appetite Questionnaire (CNAQ) and the Simplified Nutritional Appetite Questionnaire (SNAQ) are designed to assess appetite among older adults. We aimed to assess the psychometric properties of both CNAQ and SNAQ questionnaires in elderly Polish patients with HF.
Methods: The study sample involved 103 patients aged ≥ 65 years with HF diagnosed according to the New York Heart Association (NYHA) functional classes II–IV. The study was conducted among hospitalized patients with HF. In the study, the Mini Nutritional Assessment (MNA) questionnaire was used to assess the validity of the questionnaire. The evaluation of the following psychometric values was taken into account: data quality and homogeneity, factor structure, construct validity and internal consistency.
Results: Parallel analysis confirmed the unidimensional structure of both CNAQ and SNAQ. The adjusted eigenvalues for CNAQ were 3.50 for the first factor and 0.62 for the second factor, and for SNAQ they were 2.2 and 0.31, respectively. For CNAQ, the desired CFA values were obtained after modification (RMSEA <0.06, CFI, TLI> 0.95), for SNAQ without modification (RMSEA <0.06, CFI, TLI> 0.95). The correlation between CNAQ and SNAQ and MNA was strong (rs = 0.8 and rs = 0.81, p <0.001, respectively). The internal consistency of the CNAQ and SNAQ tools was 0.88 and 0.86, respectively.
Conclusion: The CNAQ and SNAQ questionnaires have positive psychometric properties and can be used to evaluate appetite among elderly Polish patients with HF.
Keywords: appetite, elderly, heart failure, nutritional status
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