Journal List > J Nutr Health > v.50(5) > 1081527

J Nutr Health. 2017 Oct;50(5):519-529. Korean.
Published online October 31, 2017.
© 2017 The Korean Nutrition Society
Needs for clinical dietitian in hospital settings: Importance of doctor's awareness regarding clinical nutrition service as mediating variable
Mi Hyang Um,1,* Yoo Kyoung Park,1,* Yoon Mi Song,2 Song Mi Lee,3 and Eun Soon Lyu2
1Department of Medical Nutrition, Graduate school of East-West Medical Science, Kyung Hee University, Yongin 17104, Korea.
2Department of Food Science & Nutrition, Pukyong National University, Busan 48513, Korea.
3Department of Nutrition and Dietetics Service, Severance Hospital, Yonsei University College of Medicine, Seoul 03722, Korea.

To whom correspondence should be addressed. tel: +82-51-629-5848, Email:

*Co-first author

Received July 12, 2017; Revised August 06, 2017; Accepted September 25, 2017.

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License ( which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.



The purpose of this study was to explore whether or not there is a relationship between doctor's awareness of clinical nutrition service and needs for a clinical dietitian.


A cross-sectional survey design was used. The research was carried out by using questionnaires that had been specifically designed for the study. The research was conducted from September to October, 2013 for 311 doctors at 43 hospitals (with over 400 beds). Frequency analysis, factor analysis, reliability analysis, confirmatory factor analysis, and bootstrapping analysis were conducted using SPSS 21.0.


‘Implementation of clinical nutritional service’ (p < 0.001) and ‘usefulness on clinical nutrition service’ (p < 0.001) were found to be correlated with ‘importance of clinical nutrition service’ as an independent variable. The correlation between ‘importance of clinical nutrition service’ as a mediating variable and ‘needs for clinical dietitian’ as a dependent variable was also confirmed (p < 0.001). The results of the bootstrapping test showed that the mediating effect of ‘importance of clinical nutrition service’ was significant. The indirect effect value between ‘implementation of clinical nutrition service’ and ‘needs for clinical dietitian’ was 0.040, indirect effect value between ‘usefulness on clinical nutrition service’ and ‘needs for clinical dietitian’ was 0.095.


The frequency of providing clinical nutritional services, the quality of clinical nutritional services, and the degree of implementation of clinical nutritional services were found to be important for positive perception of clinical nutrition services by doctors. Therefore, proper provision of clinical nutrition services and effective therapeutic effects will be continuously highlighted, which will increase the awareness of the physician and ultimately increase the demand for clinical nutrition service.

Keywords: clinical nutrition service; clinical dietitian; doctor's awareness; mediation


Fig. 1
Complete mediation model
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Fig. 2
Partial mediation model
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Table 1
General characteristics of the medical staffs
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Table 2
Result of factor analysis for single factor test
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Table 3
Means, standard deviations, and correlations between variables
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Table 4
Results of regression analyse of the mediating of importance on clinical nutrition service between implementation of clinical nutrition service, usefulness on clinical nutrition service and needs for clinical dietitian
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Table 5
Results of Indirect Effect of Importance on clinical nutrition service
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