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https://hdl.handle.net/20.500.14094/90004461
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2024-05-09
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90004461 (fulltext)
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メタデータID
90004461
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open access
出版タイプ
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タイトル
Reduction in Vegetable Intake Disparities With a Web-Based Nutrition Education Intervention Among Lower-Income Adults in Japan: Randomized Controlled Trial
著者
Nakamura, Saki ; Inayama, Takayo ; Harada, Kazuhiro ; Arao, Takashi
著者名
Nakamura, Saki
著者名
Inayama, Takayo
著者ID
A0585
研究者ID
1000050707875
KUID
https://kuid-rm-web.ofc.kobe-u.ac.jp/search/detail?systemId=6e154543319df061520e17560c007669
著者名
Harada, Kazuhiro
原田, 和弘
ハラダ, カズヒロ
所属機関名
人間発達環境学研究科
著者名
Arao, Takashi
収録物名
Journal of Medical Internet Research
巻(号)
19(11)
ページ
e377-e377
出版者
Journal of Medical Internet Research
刊行日
2017-11
公開日
2017-12-26
抄録
Background: No existing Web-based nutrition education interventions have been evaluated in light of socioeconomic status just in Japan. Objective: The aim was to investigate the effect of a Web-based intervention program on reducing vegetable intake disparities between low-and middle-income Japanese adults. Methods: In this randomized controlled trial, participants were assessed at three time points-baseline, postintervention (5 weeks later), and a follow-up after 3 months-from October 2015 to March 2016. We collected data via a Japanese online research service company from 8564 adults aged 30 to 59 years. Participants were stratified according to national population statistics for gender and age, and randomly selected. They were then randomly allocated into intervention (n=900) and control (n=600) groups such that both groups contained an equal number of individuals with low and middle income. The intervention program encouraged behavior change using behavioral theories and techniques tailored to their assumed stage of change. The outcome was vegetable intake servings per day (1 serving being approximately 70 g). Results: Out of 900 participants who started, 450 were from the middle income group (of which 386 or 85.7% completed the intervention), and 450 were from the low income group (of which 371 or 82.4% completed). In the intervention group, vegetable intake increased in the low-income participants from baseline to postintervention (0.42 servings, 95% CI 0.11-0.72). A two-way analysis of variance showed that low-income participants had significant main effects of group (η2=0.04, P=.01) and time (η2=0.01, P<.001), and a significant interaction (η2=0.01, P=.009). Middle-income participants also had a significant main effect of time (η2=0.01, P=.006) and a significant interaction (η2=0.01, P=.046). Conclusions: This Web-based nutritional education intervention could fill the vegetable intake gap between low-and middle-income adults in Japan, and is expected to prevent noncommunicable and lifestyle-related diseases. Further intervention program improvements are necessary to maintain and increase vegetable intake for other groups.
キーワード
vegetable intake
adults
socioeconomic disadvantage
Web-based nutrition intervention
randomized controlled trial
カテゴリ
人間発達環境学研究科
学術雑誌論文
権利
©Saki Nakamura, Takayo Inayama, Kazuhiro Harada, Takashi Arao. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 24.11.2017.
This is an open-access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work, first published in the Journal of Medical Internet Research, is properly cited. The complete bibliographic information, a link to the original publication on http://www.jmir.org/, as well as this copyright and license information must be included.
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資源タイプ
journal article
言語
English (英語)
ISSN
1439-4456
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eISSN
1438-8871
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関連情報
DOI
https://doi.org/10.2196/jmir.8031
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