A study on hypertension relevant nutritional knowledge and dietary practices in Chinese college students studying in South Korea

Zhe Sun; Wookyoun Cho

doi:10.4163/jnh.2015.48.5.441

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Sun and Cho: A study on hypertension relevant nutritional knowledge and dietary practices in Chinese college students studying in South Korea

Research Article

Journal of Nutrition and Health 2015; 48(5): 441-450.

Published online: 30 October 2015

DOI: https://doi.org/10.4163/jnh.2015.48.5.441

A study on hypertension relevant nutritional knowledge and dietary practices in Chinese college students studying in South Korea

Zhe Sun¹, Wookyoun Cho²

¹Major in Clinical Nutrition, Graduate school of Gachon University, Gyeonggi 13120, Korea.

²Department of Food and Nutrition, College of BioNano Technology, Gachon University, Gyeonggi 13120, Korea.

To whom correspondence should be addressed. tel: +82-31-750-5972, wkcho@gachon.ac.kr

Received 17 August 2015 Revised 31 August 2015 Accepted 9 September 2015

(open-access):

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Purpose

The purpose of this study was to investigate the effects of hypertension relevant nutrition knowledge on practices for prevention of hypertension in Chinese college students studying in South Korea.

Methods

We conducted a survey of 276 Chinese students studying more than three months in Korean universities who were aged 19 and older about hypertension and sodium relevant nutrition knowledge, intake of salty processed food, hypertension prevention practices, and stages of behavior change for hypertension.

Results

The average score on the questionnaire for hypertension relevant nutritional knowledge was 40.62 out of 50 points, and the average score for sodium relevant nutritional knowledge was 24 out of 30 points. Kimchi was the most frequently eaten salty processed food. The average score for hypertension prevention practices was 3.10 out of 5 points. The behavior change stages for prevention of hypertension were contemplation (47.1%), action (32.2%), and pre-contemplation (20.7%). The students received high scores on nutrition knowledge and showed significantly higher scores on the action stage than on pre-contemplation or contemplation. Nutritional knowledge of hypertension and sodium showed positive correlation with hypertension prevention practices, whereas negative correlation with salty processed food intake.

Conclusion

Development of an education program for Chinese students in Korea on hypertension and sodium relevant nutritional knowledge is needed so that they can practice for prevention of hypertension.

Keywords: Chinese college students, hypertension and sodium relevant knowledge, behavior change stage, dietary practices

Figures and Tables

Fig. 1

Relations of salty processed food intake frequency according to behavior change stages

Table 1

General characteristics of subjects

Table 2

Anthropometric measurement of subjects

1) Mean ± SD 2) BMI = kg/m², < 18.5 underweight, 18.5~24 normal weight, 24~28 overweight, ≥ 28 obesity by Chinese standard

Table 3

Levels of nutritional knowledge related with hypertension and sodium

1) Average of the scores: incorrect answer = 0, correct answer = 5

Table 4

Frequency of salty processed food intake

1) 4: 2~3 times a month, 5: Once a week, 6: 2~3 times a week, 7: 4~6 times a week 2) Mean ± SD

Table 5

Average of hypertension preventing practices

1) Average of 5-point Likert scale 2) Mean ± SD

Table 6

Distribution of behavior change stages for hypertension preventing practices

Table 7

Relations of behavior change stage and nutritional knowledge relevant to hypertension

1) Mean ± SD 2) a, b: Values with different superscript letter means significantly different among groups by Duncan's multiple comparison test at ^*p < 0.05, ^**p < 0.01 3) Average of the scores: incorrect answer = 0, correct answer = 5

Table 8

Relations of behavior change stage and nutritional knowledge relevant to sodium

1) Mean ± SD 2) a, b: Values with different superscript letter means significantly different among groups by Duncan's multiple comparison test at ^*p < 0.05 3) Average of the scores: incorrect answer = 0, correct answer = 5

Table 9

Correlation of dietary practices and nutritional knowledge relevant to hypertension and sodium

Significantly different among groups at Pearson's correlation test,^*p < 0.05, ^**p < 0.01

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