[Home ] [Archive]   [ فارسی ]  
:: Main :: About :: Current Issue :: Archive :: Search :: Submit :: Contact ::
:: Volume 12, Number 1 (Spring 2017) ::
2017, 12(1): 1-9 Back to browse issues page
Validity and reliability of a 40-items Food Frequency Questionnaire to Measure the Consumption of Gluten in Patients with Ulcerative Colitis
F Hadi, MH Somi, S Ghavamzadeh *
professor assistent استادیار دانشکده پزشکی، دانشگاه علوم پزشکی ارومیه، ایران
Abstract:   (908 Views)

Background and Objectives: There is no food frequency questionnaire by which gluten consumption in patients with ulcerative colitis could be evaluated in Iran. The aim of this study was to assess the validity and reliability of a food frequency questionnaire to measure gluten consumption in ulcerative colitis. After designing the questionnaire, its validity and reliability were measured to be used in studies in this area.

Materials and Methods: The method used to assess validity was panel of experts. The designed questionnaires were sent to 10 experts in nutrition to get their opinion to the questions related to CVR and CVI. To evaluate the reliability, 3 questionnaires with one-month intervals were filled by the experts, and Cronbach's alpha coefficient was calculated. To ensure the ability to use it in the patients, the questionnaire's reliability were also assessed among a group of patients with ulcerative colitis.

Results: CVR coefficient calculated for the necessity of the questions was 0.695. CVI was calculated to measure the relevance of the questions to the objectives, and the content of 0.923 was obtained. Cronbach's alpha that measured in the panel of experts and among the patients was 0.761 and 0.786, respectively in the pilot study.

Conclusion: The present study showed that food frequency questionnaire designed to measure the consumption of gluten has good reliability and validity, and can be used particularly in patients with ulcerative colitis.

Keywords: Food frequency questionnaire, Ulcerative colitis, Gluten, Validity, Reliability authors

 

Keywords: Food frequency questionnaire, Ulcerative colitis, Gluten, Validity, Reliability authors
Full-Text [PDF 229 kb]   (517 Downloads)    
Type of Study: Research | Subject: nutrition
Received: 2016/03/6 | Accepted: 2016/08/3 | Published: 2017/03/26
Send email to the article author

Add your comments about this article
Your username or email:

Write the security code in the box >



XML   Persian Abstract   Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Hadi F, Somi M, Ghavamzadeh S. Validity and reliability of a 40-items Food Frequency Questionnaire to Measure the Consumption of Gluten in Patients with Ulcerative Colitis. Iranian Journal of Nutrition Sciences & Food Technology. 2017; 12 (1) :1-9
URL: http://nsft.sbmu.ac.ir/article-1-2180-en.html
Volume 12, Number 1 (Spring 2017) Back to browse issues page
Iranian Journal of  Nutrition Sciences & Food  Technology
Persian site map - English site map - Created in 0.048 seconds with 790 queries by yektaweb 3475