Development and validation of a questionnaire to evaluate the state of Iranian hospital nutrition support
Keywords:
Nutritional Support, Hospitals, Surveys and QuestionnairesAbstract
Background: Recently, nutrition support was implemented as a part of clinical services in hospitals. The implementation of nutrition support needs to be assessed for its improvement. Objective: This study aimed to develop and validate a questionnaire to assess the state of nutrition support in Iranian hospitals. Methods: A mixed method approach was used in this study. This study was performed in training hospitals of Iran in 2016. In the development stage, pre-determined keywords were searched on international electronic databases. Additionally, semi-structural interviews were performed with 13 key informants based on purposive sampling. Themes were extracted from articles and interviews by thematic analysis. A primary questionnaire was generated based on extracted themes. In the validating stage, the content validity ratio (CVR) and content validity index (CVI) were used. The reliability of the questionnaire was also computed through a pilot study using Cronbach’s alpha test. SPSS version 16.0 was used for data analysis. Results: Based on 16 items elicited from the content analysis, 110 questions were generated, out of which, 65 questions were selected. Then, 55 questions showing acceptable CVI and CVR were chosen for the pilot study. The Cronbach’s alpha coefficient of the questionnaire was found to be 0.80. This value remained stable for each item, even after an item was deleted. Conclusion: For the first time, a validated questionnaire for the assessment of the state of nutrition support in hospitals was developed in a methodological approach process with high validity and reliability indexes which intended to be comprehensive based on the mixed method approach.
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