Online WIC Nutrition Education to Promote Farmers' Market Fruit and Vegetable Purchases and Consumption
2019年10月25日 更新者：Jennifer Di Noia、William Paterson University of New Jersey
This study is evaluating the WIC Fresh Start program, a theory-driven, web-based nutrition education lesson to promote farmers' market fruit and vegetable purchases and consumption among women enrolled in the Special Supplemental Nutrition Program for Women, Infants and Children (WIC).
調査の概要
詳細な説明
This study is evaluating the WIC Fresh Start program, a theory-driven, web-based nutrition education lesson to promote fruit and vegetable (FV) consumption among women enrolled in the Special Supplemental Nutrition Program for Women, Infants and Children (WIC).
Designed to leverage vouchers provided to WIC participants for FV purchases through the Farmers' Market Nutrition Program (FMNP) and monthly cash value vouchers (CVVs) redeemable at farmers' markets, the lesson is conceptually grounded in formative research on knowledge, attitudes and skills influencing farmers' market FV purchases and consumption and theoretical understanding of approaches for modifying them.
Lesson content delivery is primarily through short video segments and audio output to increase accessibility for low-literate learners.
Informed by a community-based participatory research approach, WIC participants are engaged as full partners in the development of the lesson and the delivery of content (videos feature WIC participants).
The setting is a large WIC agency serving three New Jersey counties.
Separate samples of women were recruited to participate in 1) focus groups for guiding lesson content development (N = 56 participants) and pretesting the resulting content (N = 52 participants), 2) cognitive testing to assess the clarity and interpretability of items and response formats in measures of knowledge, attitudes and skills developed for the study (N = 15), 3) one-on-one sessions to assess reactions to initial versions of video segments developed for the lesson (N = 20), and 4) the outcome evaluation (N = 744).
Stratified based on FMNP voucher receipt, participants are randomized to receive the lesson or existing online health education.
Outcome measures (administered orally to reduce literacy demands of the response task) are completed at pretest (immediately before the lesson), posttest (two weeks after the lesson), and 3 and 6 months after posttesting.
Short- and long-term lesson effects on FV intake, FMNP voucher redemption and the redemption of CVVs at farmers' markets will be evaluated.
Evidence for mediation by knowledge, attitudes, and skills of lesson effects on FV intake and voucher redemption, dose-response relationships, and user satisfaction with the lesson also will be examined.
研究の種類
介入
入学 (実際)
744
段階
- 適用できない
連絡先と場所
このセクションには、調査を実施する担当者の連絡先の詳細と、この調査が実施されている場所に関する情報が記載されています。
研究場所
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New Jersey
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Paterson、New Jersey、アメリカ、07524
- Saint Joseph's WIC Program
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参加基準
研究者は、適格基準と呼ばれる特定の説明に適合する人を探します。これらの基準のいくつかの例は、人の一般的な健康状態または以前の治療です。
適格基準
就学可能な年齢
- 子
- 大人
- 高齢者
健康ボランティアの受け入れ
いいえ
受講資格のある性別
女性
説明
Inclusion Criteria:
- Pregnant or postpartum WIC participant
- Female caregiver of infant/child WIC participant
Exclusion Criteria:
- Restrictions on food intake
- Classified by WIC as high risk/requiring an individualized nutrition care plan
研究計画
このセクションでは、研究がどのように設計され、研究が何を測定しているかなど、研究計画の詳細を提供します。
研究はどのように設計されていますか？
デザインの詳細
- 主な目的：防止
- 割り当て：ランダム化
- 介入モデル：並列代入
- マスキング：ダブル
武器と介入
参加者グループ / アーム |
介入・治療 |
|---|---|
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アクティブコンパレータ：WIC Fresh Start Program
Participants in this arm receive the Fresh Start program.
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The intervention is an online lesson to promote farmers' market FV purchases and consumption.
The lesson comprises three modules, each consisting of 1) behavior change content presented through a video segment featuring WIC participants, and 2) an interactive activity to build targeted knowledge, attitudes, and skills.
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アクティブコンパレータ：Existing Online Health Education
Participants in this arm receive existing online WIC health education.
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Any of seven existing online WIC health education lessons (lessons are available on breastfeeding, being active, fruits and vegetables, calcium, cholesterol, oral health and iron).
The lessons consist of an introductory segment presented with online text and graphics.
After reading this material, viewers have the option to complete one of four lesson activities.
The activities provide opportunities for viewers to read further on the topic and are designed to reinforce key points of the lesson.
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実験的：WIC Fresh Start Program (FMNP)
Participants in this arm receive the Fresh Start program and WIC Farmers' Market Nutrition Program (FMNP) vouchers redeemable at farmers' markets.
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The intervention is an online lesson to promote farmers' market FV purchases and consumption.
The lesson comprises three modules, each consisting of 1) behavior change content presented through a video segment featuring WIC participants, and 2) an interactive activity to build targeted knowledge, attitudes, and skills.
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アクティブコンパレータ：Existing Online Health Education (FMNP)
Participants in this arm receive existing online WIC health education and WIC Farmers' Market Nutrition Program (FMNP) vouchers redeemable at farmers' markets.
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Any of seven existing online WIC health education lessons (lessons are available on breastfeeding, being active, fruits and vegetables, calcium, cholesterol, oral health and iron).
The lessons consist of an introductory segment presented with online text and graphics.
After reading this material, viewers have the option to complete one of four lesson activities.
The activities provide opportunities for viewers to read further on the topic and are designed to reinforce key points of the lesson.
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この研究は何を測定していますか？
主要な結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
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Number of Participants Who Redeemed FMNP Vouchers
時間枠：6 months (2015 farmers' market season [June to November 2015])
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The state WIC agency is providing data on FMNP voucher redemption.
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6 months (2015 farmers' market season [June to November 2015])
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Frequency of Fruit and Vegetable Intake
時間枠：Pretest, posttest (2 weeks after pretest), and 3- and 6-month follow-up
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Times per day fruits and vegetable are consumed as assessed by a validated food frequency questionnaire.
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Pretest, posttest (2 weeks after pretest), and 3- and 6-month follow-up
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Quantity of Fruit and Vegetable Intake
時間枠：Pretest, posttest, and 3- and 6-month follow-up
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Cups per day consumed of fruits and vegetables as assessed by a validated fruit and vegetable screener.
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Pretest, posttest, and 3- and 6-month follow-up
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二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
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Number of Participants Who Redeemed Cash Value Vouchers at Farmers' Markets
時間枠：6 months (2015 farmers' market season [June to November 2015])
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The state WIC agency is providing data on cash value voucher redemption.
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6 months (2015 farmers' market season [June to November 2015])
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Response to Survey Items Assessing Knowledge of the WIC Farmers' Market Nutrition Program Using a True/False Format.
時間枠：Pretest, posttest, and 3- and 6-month follow-up
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Index of Knowledge of the FMNP Score range: 0-6 Higher scores indicates greater knowledge
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Pretest, posttest, and 3- and 6-month follow-up
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Response to an Item Assessing Knowledge of WIC-authorized Farmers' Markets Using a Yes/no Format.
時間枠：Pretest, posttest, and 3- and 6-month follow-up
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Knowledge of a farmers' market with farmers approved by WIC to accept WIC farmers' Market Nutrition Program and Cash Value vouchers Scores: No (0) and yes (1).
Higher scores (yes responses) indicate that the respondent knows of a farmers' market with farmers approved by WIC to accept WIC farmers' Market Nutrition Program and Cash Value vouchers.
Odds ratios and 95% confidence intervals indicate the likelihood of the outcome (knowledge of such markets) among those in the WIC Fresh Start (FMNP) arm relative to the comparator arm.
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Pretest, posttest, and 3- and 6-month follow-up
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Response to Survey Items Assessing Attitudes Towards Farmers' Market Fruits and Vegetables Using 7-point Likert Rating Scales.
時間枠：Pretest, posttest, and 3- and 6-month follow-up
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Attitudes towards Farmers' Market Fruits and Vegetables Score range: 6-42 Higher scores indicate more favorable attitudes
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Pretest, posttest, and 3- and 6-month follow-up
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Response to Survey Items Assessing Awareness of Locally Grown, Seasonal Fruits and Vegetables Using a Yes/no Format.
時間枠：Pretest, posttest, and 3- and 6-month follow-up
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Familiarity with Locally Grown Seasonal Items Score range: 0-3 Higher scores indicate greater familiarity
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Pretest, posttest, and 3- and 6-month follow-up
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Response to Survey Items Assessing Fruit and Vegetable Food Safety Skills Using 7-point Likert Rating Scales.
時間枠：Pretest, posttest, and 3- and 6-month follow-up
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Fruit and Vegetable Food Safety Skills Score range: 19-85 Higher scores indicate greater skills
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Pretest, posttest, and 3- and 6-month follow-up
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Response to Survey Items Assessing Farmers' Market Asking Skills Using a Yes/no Format.
時間枠：Pretest, posttest, and 3- and 6-month follow-up
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Farmers' Market Asking Skills Score range: 0-3 Higher scores indicate greater skills
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Pretest, posttest, and 3- and 6-month follow-up
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Response to Survey Items Assessing Positive Outcome Expectations for Consuming Locally Grown Fruits and Vegetables Using a Yes/no Format.
時間枠：Pretest, posttest, and 3- and 6-month follow-up
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Positive Outcome Expectations for Consuming Locally Grown Fruit and Vegetables Score range:0-3 Higher scores indicate more favorable ratings
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Pretest, posttest, and 3- and 6-month follow-up
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Response to an Item Assessing Whether the Participant Ever Purchased Fruits and Vegetables at a Farmers' Market Using a Yes/no Format.
時間枠：Pretest, posttest, and 3- and 6-month follow-up
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Lifetime Farmers' Market Fruit and Vegetable Purchases Scores: No (0), Yes (1).
Higher scores (yes responses) indicate indicate that the respondent has ever purchased fruits and vegetables at a farmers' market.
Odds ratios and 95% confidence intervals indicate the likelihood of the outcome (having ever purchased fruits and vegetables at a farmers' market) among those in the WIC Fresh Start (FMNP) arm relative to the comparator arm.
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Pretest, posttest, and 3- and 6-month follow-up
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Response to Survey Items Assessing Farmers' Market Fruit and Vegetable Preparation Skills Using 7-point Likert Rating Scales.
時間枠：2 weeks
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Farmers' Market Fruit and Vegetable Preparation Skills Score range:12-84 Higher scores indicate greater skills
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2 weeks
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Response to an Item Assessing Whether the Participant Purchased Fruits and Vegetables at a Farmers' Market in the Past Two Weeks Using a Yes/no Format.
時間枠：Pretest, posttest, and 3- and 6-month follow-up
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Recent Farmers' Market Fruit and Vegetable Purchases Scores: No (0), Yes (1).
Higher scores (yes responses) indicate that the respondent purchased fruits and vegetables at a farmers' market in the past two weeks.
Odds ratios and 95% confidence intervals indicate the likelihood of the outcome (having purchased fruits and vegetables at a farmers' market in the past two weeks) among those in the WIC Fresh Start (FMNP) arm relative to the comparator arm.
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Pretest, posttest, and 3- and 6-month follow-up
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Response to an Item Assessing Behavioral Intentions to Purchase Fruits and Vegetables at a Farmers' Market in the Next Two Weeks Using a Yes/no Format.
時間枠：Pretest, posttest, and 3- and 6-month follow-up
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Intentions to Purchase Fruits and Vegetables at a Farmers' Market Scores: no (0), Yes (1).
Higher scores (yes responses) indicate that the respondent intends to purchase fruits and vegetables at a farmers' market in the next two weeks.
Odds ratios and 95% confidence intervals indicate the likelihood of the outcome (intending to purchase fruits and vegetables at a farmers' market in the next two weeks) among those in the WIC Fresh Start (FMNP) arm relative to the comparator arm.
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Pretest, posttest, and 3- and 6-month follow-up
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Response to Survey Items Assessing Knowledge of Locally Grown Seasonal Fruits and Vegetables Found at Farmers' Markets in July Using a Yes/no Format.
時間枠：Pretest, posttest, and 3- and 6-month follow-up
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Knowledge of Locally Grown Seasonal Fruits and Vegetables found at Farmers' Markets in July Score range:0-9 Higher scores indicate greater knowledge
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Pretest, posttest, and 3- and 6-month follow-up
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Response to Survey Items Assessing Food-specific Knowledge Using a True/False Format
時間枠：Pretest, posttest, and 3- and 6-month follow-up
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Food-specific Knowledge Score range: 2-13 Higher scores indicate greater knowledge
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Pretest, posttest, and 3- and 6-month follow-up
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Response to Survey Items Assessing Knowledge of Area Farmers' Markets
時間枠：Pretest, posttest, and 3- and 6-month follow-up
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Farmers' Market-specific Knowledge Score range:0-2 Higher scores indicate greater knowledge
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Pretest, posttest, and 3- and 6-month follow-up
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協力者と研究者
ここでは、この調査に関係する人々や組織を見つけることができます。
捜査官
- 主任研究者：Jennifer Di Noia, PhD、Professor, Department of Sociology, William Paterson University
出版物と役立つリンク
研究に関する情報を入力する責任者は、自発的にこれらの出版物を提供します。これらは、研究に関連するあらゆるものに関するものである可能性があります。
一般刊行物
- Di Noia J, Monica D, Sikorskii A, Cullen KW. Outcomes of a randomized controlled trial of nutrition education to promote farmers' market fruit and vegetable purchases and consumption among women enrolled in the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC). BMC Nutr. 2017 Jun 21;3:48. doi: 10.1186/s40795-017-0172-0. eCollection 2017.
- Di Noia J, Monica D, Cullen KW, Perez-Escamilla R, Gray HL, Sikorskii A. Differences in Fruit and Vegetable Intake by Race/Ethnicity and by Hispanic Origin and Nativity Among Women in the Special Supplemental Nutrition Program for Women, Infants, and Children, 2015. Prev Chronic Dis. 2016 Aug 25;13:E115. doi: 10.5888/pcd13.160130.
- Di Noia J, Cullen KW, Monica D. Social Desirability Trait Is Associated with Self-Reported Vegetable Intake among Women Enrolled in the Special Supplemental Nutrition Program for Women, Infants, and Children. J Acad Nutr Diet. 2016 Dec;116(12):1942-1950. doi: 10.1016/j.jand.2016.07.008. Epub 2016 Sep 21.
- Di Noia J, Monica D, Cullen KW, Thompson D. Perceived Influences on Farmers' Market Use among Urban, WIC-enrolled Women. Am J Health Behav. 2017 Sep 1;41(5):618-629. doi: 10.5993/AJHB.41.5.11.
- Di Noia J, Monica D, Gray HL, Cullen KW. The Special Supplemental Nutrition Program for Women, Infants, and Children Fresh Start Randomized Controlled Trial: Baseline Participant Characteristics and Reliability of Measures. J Acad Nutr Diet. 2016 Dec;116(12):1899-1913. doi: 10.1016/j.jand.2016.07.020. Epub 2016 Sep 20.
研究記録日
これらの日付は、ClinicalTrials.gov への研究記録と要約結果の提出の進捗状況を追跡します。研究記録と報告された結果は、国立医学図書館 (NLM) によって審査され、公開 Web サイトに掲載される前に、特定の品質管理基準を満たしていることが確認されます。
主要日程の研究
研究開始
2014年7月1日
一次修了 (実際)
2016年6月1日
研究の完了 (実際)
2016年6月1日
試験登録日
最初に提出
2015年9月29日
QC基準を満たした最初の提出物
2015年9月30日
最初の投稿 (見積もり)
2015年10月1日
学習記録の更新
投稿された最後の更新 (実際)
2019年10月30日
QC基準を満たした最後の更新が送信されました
2019年10月25日
最終確認日
2019年10月1日
詳しくは
本研究に関する用語
追加の関連 MeSH 用語
その他の研究ID番号
- WIC NEI-12-TX (その他の識別子：UC Davis)
個々の参加者データ (IPD) の計画
個々の参加者データ (IPD) を共有する予定はありますか?
はい
IPD プランの説明
The data sets used and/or analyzed during this study are available from the corresponding author on reasonable request.
IPD 共有時間枠
Data are available for sharing.
IPD 共有アクセス基準
Contact the PI with requests (dinoiaj@wpunj.edu).
この情報は、Web サイト clinicaltrials.gov から変更なしで直接取得したものです。研究の詳細を変更、削除、または更新するリクエストがある場合は、register@clinicaltrials.gov。 までご連絡ください。 clinicaltrials.gov に変更が加えられるとすぐに、ウェブサイトでも自動的に更新されます。