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Saudi Journal of Kidney Diseases and Transplantation
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Table of Contents   
LETTER TO THE EDITOR  
Year : 2013  |  Volume : 24  |  Issue : 1  |  Page : 130
The impact of education on nutrition on the quality of life in patients on hemodialysis: A comparative study from teaching hospitals


1 Faculty of Health Sciences, University Kebangsaan, Kuala Lumpur, Malaysia
2 Department of Social and Preventive Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia

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Date of Web Publication22-Jan-2013
 

How to cite this article:
Esfehani AJ, Dashti S. The impact of education on nutrition on the quality of life in patients on hemodialysis: A comparative study from teaching hospitals. Saudi J Kidney Dis Transpl 2013;24:130

How to cite this URL:
Esfehani AJ, Dashti S. The impact of education on nutrition on the quality of life in patients on hemodialysis: A comparative study from teaching hospitals. Saudi J Kidney Dis Transpl [serial online] 2013 [cited 2020 Jun 2];24:130. Available from: http://www.sjkdt.org/text.asp?2013/24/1/130/106308
To the Editor,

We read with interest the article by Aghakhani et al entitled "The impact of education on nutrition on the quality of life (QoL) in patients on hemodialysis: A comparative study from teaching hospitals" (Saudi J Kidney Dis Transpl 2012 Jan;23(1):26-30). [1] We appreciate the efforts the authors have made in that study, but there are confusing issues in the paper and we think further clarification should be made for better understanding of the study findings.

Firstly, no data was presented on the duration of education intervention. [1] In previous studies, pre-dialysis and maintenance hemodialysis (MHD) patients received 12 weeks to five months of nutrition education, according to the education method used, before being reassessed. [2],[3]

Secondly, comparison of QoL was made between MHD and transplanted patients. [1] It was not mentioned whether these patients had a history of transplantation or were transplanted at the time of study. In the latter condition, transplanted subjects would not receive dialysis and should have been excluded from the study regarding the research question and objectives.

Thirdly, researchers used the bivariate chi-square test to compare the results of the QoL questionnaire in different categories of socio-demographic variables. [1] Chi-square test is mostly used to identify the association between variables and is not appropriate for comparison among two groups. [4] On the other hand, the chi-square test does not provide a t value, while in the study t values were presented. [1] We believe the appropriate statistical test for this study could be either 2 sample t-test for parametric variables or Mann-Whitney U test for non-parametric variables. [4]

 
   References Top

1.Aghakhani N, Samadzadeh S, Mafi TM, Rahbar N. The impact of education on nutrition on the quality of life in patients on hemodialysis: A comparative study from teaching hospitals. Saudi J Kidney Dis Transpl 2012;23:26-30.  Back to cited text no. 1
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2.Wiser NA, Shane JM, McGuigan AT, et al. The effects of a group nutrition education program on nutrition knowledge, nutrition status, and quality of life in hemodialysis patients. J Ren Nutr 1997;7:187-93.  Back to cited text no. 2
    
3.Campbell KL, Ash S, Bauer JD. The impact of nutrition intervention on quality of life in pre-dialysis chronic kidney disease patients. Clin Nutr 2008;27:537-44.  Back to cited text no. 3
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4.Chan YH. Biostatistics 103: Qualitative data - tests of independence. Singapore Med J 2003; 33:498-503.  Back to cited text no. 4
    

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Correspondence Address:
Ali Jafarzadeh Esfehani
Faculty of Health Sciences, University Kebangsaan, Kuala Lumpur
Malaysia
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DOI: 10.4103/1319-2442.106308

PMID: 23354209

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