Journal List > J Nutr Health > v.52(5) > 1136455

Choi and Kim: Mobile application-based dietary sugar intake reduction intervention study according to the stages of behavior change in female college students

Abstract

Purpose

This study examined the effects of a mobile app-based program to reduce the dietary sugar intake according to the stages of the behavioral change in dietary sugar reduction in female college students.

Methods

The program used in this study can monitor the dietary sugar intake after recording the dietary intake and provide education message for the reduction of dietary sugar intake. In an eight-week pre-post intervention study, 68 female college students were instructed to record all the food they consumed daily and received weekly education information. At pre-post intervention, the subjects were asked to answer the questionnaire about sugar-related nutrition knowledge, sugar-intake behavior, and sugar-intake frequency. For statistical analysis, ANOVA and a paired t-test were used for comparative analysis according Precontemplation (PC), Contemplation ·Preparation (C ·P), and A ·M (Action ·Maintenance) stage.

Results

Significant differences were observed in the frequency of snacking, experience of nutrition education, and preference for sweetness according to the stages of behavior change in dietary sugar reduction. After finishing an intervention, the sugar-related nutrition knowledge score was increased significantly in the stages of Precontemplation (PC) and Contemplation ·Preparation (C ·P). The score of the sugar intake behavior increased significantly in all stages. The intake frequency of chocolate, muffins or cakes, and drinking yogurt decreased significantly in the PC stage and the intake frequency of biscuits, carbonated beverages, and fruit juice decreased significantly in the C ·P stage. Subjects in the PC and C ·P stages had an undesirable propensity in nutrition knowledge, sugar-intake behavior, and sugar-intake frequency compared to the A ·M stage, but this intervention improved significantly their nutrition knowledge, sugar-intake behavior, and sugar-intake frequency.

Conclusion

This program can be an effective educational tool in the stages of PC and C ·P, and is expected to further increase the usability and sustainability of mobile application if supplemented appropriately to a health platform program.

Figures and Tables

Fig. 1

Application screen (A) Select the kind of meal (B) Record diet after the meal (C) Real-time feedback on the intake of total energy and total sugar.

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Fig. 2

Examples of card news: ‘Description of nutritive components and how to read it’.

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Table 1

General characteristics of subjects according to the stages of dietary sugar reduction behavior

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n (%)

1) PC, Precontemplation; C · P, Contemplation · Preparation; A · M, Action · Maintenance

2) Significantly different by t-test (*p < 0.05, **p < 0.01, ***p < 0.001) between pre and post intervention

Table 2

Sugar-related nutrition knowledge scores of subjects according to stage of dietary sugar reduction behavior between pre and post intervention

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Each value is mean ± standard deviation.

1) Pre, pre intervention of reducing dietary sugar intake; Post, post intervention of reducing dietary sugar intake

2) PC, Precontemplation; C · P, Contemplation · Preparation; A · M, Action · Maintenance

3) Means with different superscript in row are significantly different among pre-intervention by ANOVA with Scheffe's multiple range test (p < 0.05).

4) Significantly different by t-test (*p < 0.05, **p < 0.01, ***p < 0.001) between pre and post intervention by stage of change for reducing dietary sugar intake.

Table 3

Sugar intake behavior scores of subjects according to stage of dietary sugar reduction behavior between pre and post intervention

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Each value is mean ± standard deviation.

By using likert 5-point scale: from "totally agree" (1 point) to "totally disagree" (5 point).

The higher score means an sugar intake behavior that eats less sugar.

1) Pre, pre intervention of reducing dietary sugar intake; Post, post intervention of reducing dietary sugar intake

2) PC, Precontemplation; C · P, Contemplation · Preparation; A · M, Action · Maintenance

3) Means with different superscript in row are significantly different among pre-intervention by ANOVA with Scheffe's multiple range test.

Table 4

Sugar intake frequency of subjects according to stage of dietary sugar reduction behavior between pre and post intervention

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Each value is mean ± standard deviation.

1) Pre, pre intervention of reducing dietary sugar intake; Post, post intervention of reducing dietary sugar intake

2) PC, Precontemplation; C · P, Contemplation · Preparation; A · M, Action · Maintenance

3) Means with different superscript in row are significantly different among pre-intervention by ANOVA with Scheffe's multiple range test (p<0.05).

4) Significantly different by t-test (*p < 0.05, **p < 0.01, ***p < 0.001) between pre and post intervention by stage of change for reducing dietary sugar intake

Notes

This work was partly supported by grants from Co. Wehuddling Korea.

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