Open Access, Peer-reviewed
eISSN 2951-3146
    Korean J Community Nutr. 2015 Apr;20(2):129-140. Korean.
    Published online Apr 30, 2015.
    https://doi.org/10.5720/kjcn.2015.20.2.129
    Copyright © 2015 The Korean Society of Community Nutrition
    Original Article

    The Association between the Adherence to Dietary Guidelines for Breast Cancer Survivors and Health-related Quality of Life among Korean Breast Cancer Survivors

    Sihan Song,1 Jiyoung Youn,1 Myungsook Park,1 Eunkyung Hwang,2 Hyeong-Gon Moon,2,3 Dong-Young Noh,2,3 and Jung Eun Lee1
      • 1Department of Food and Nutrition, Sookmyung Women's University, Seoul, Korea.
      • 2Breast Care Center, Seoul National University Hospital, Seoul, Korea.
      • 3Department of Surgery and Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea.
    • Corresponding author: Jung Eun Lee. Department of Food and Nutrition, Sookmyung Women's University, Cheongpa-ro 47-gil 100, Yongsan-gu, Seoul 140-742, Korea. Tel: (02) 2077-7560, Fax: (02) 710-9479, Email: junglee@sookmyung.ac.kr
    Received March 16, 2015; Revised April 21, 2015; Accepted April 21, 2015.

    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

    Objectives

    We examined the association between the adherence to dietary guidelines for breast cancer survivors and health-related quality of life in a cross-sectional study of Korean breast cancer survivors.

    Methods

    A total of 157 women aged 21 to 79 years who had been diagnosed with stage I to III breast cancers according to the American Joint Committee on Cancer (AJCC) and had breast cancer surgery at least 6 months before the baseline were included. We used a Korean version of the Core 30 (C30) and Breast cancer 23 (BR23) module of the European Organization for Research and Treatment Cancer Quality of Life Questionnaire (EORTC-QLQ), both of which have been validated for Koreans. Participants were asked about their adherence to dietary guidelines for breast cancer survivors, suggested by the Korean breast cancer society, using a 5-point Likert scale. We summed dietary guideline adherence scores for each participant and calculated the least squares means of health-related quality of life according to dietary guideline adherence scores using the generalized linear model.

    Results

    Breast cancer survivors who had higher adherence to dietary guidelines for breast cancer survivors had lower constipation scores than those with lower adherence (p for trend=0.01). When we stratified by the stage at diagnosis, this association was limited to those who had been diagnosed with stage II or III breast cancers. Also, sexual functioning scores increased significantly with increasing adherence scores of dietary guidelines among those with stage II or III breast cancers (p for trend < 0.001). However, among those who had been diagnosed with stage I, higher scores of dietary guidelines were associated with higher scores of pain (p for trend=0.03) and breast symptoms (p for trend=0.05).

    Conclusions

    Our study suggested that the health-related quality of life levels of breast cancer survivors are associated with the adherence to dietary guidelines and may differ by the stage of the breast cancer.

    Keywords
    breast cancer survivors; dietary guideline adherence; health-related quality of life

    Tables

    Table 1
    The mean score of dietary guideline components among 157 breast cancer survivors1)

    Table 2
    The characteristics of study participants according to dietary guideline adherence scores

    Table 3
    Health-related quality of life (HRQOL) scores1) according to dietary guideline adherence scores among breast cancer survivors with stage I to III breast cancers (n=157)

    Table 4
    Health-related quality of life (HRQOL) scores1) according to dietary guideline adherence scores among breast cancer survivors with stage I breast cancers (n=70)

    Table 5
    Health-related quality of life (HRQOL) scores1) according to dietary guideline adherence scores among breast cancer survivors with stage II to III breast cancers (n=87)

    Acknowledgments

    This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT & Future Planning (NRF-2014R1A2A2A01007794).

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    MeSH Terms
    Breast
    Breast Neoplasms*
    Constipation
    Cross-Sectional Studies
    Diagnosis
    Female
    Humans
    Joints
    Least-Squares Analysis
    Linear Models
    Nutrition Policy*
    Quality of Life*
    Surveys and Questionnaires
    Survivors*
    Metrics
    Share
    Tables
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