Online WIC Nutrition Education to Promote Farmers' Market Fruit and Vegetable Purchases and Consumption
25 oktober 2019 uppdaterad av: 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).
Studieöversikt
Status
Avslutad
Betingelser
Intervention / Behandling
Detaljerad beskrivning
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.
Studietyp
Interventionell
Inskrivning (Faktisk)
744
Fas
- Inte tillämpbar
Kontakter och platser
Det här avsnittet innehåller kontaktuppgifter för dem som genomför studien och information om var denna studie genomförs.
Studieorter
-
-
New Jersey
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Paterson, New Jersey, Förenta staterna, 07524
- Saint Joseph's WIC Program
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Deltagandekriterier
Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.
Urvalskriterier
Åldrar som är berättigade till studier
- Barn
- Vuxen
- Äldre vuxen
Tar emot friska volontärer
Nej
Kön som är behöriga för studier
Kvinna
Beskrivning
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
Studieplan
Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.
Hur är studien utformad?
Designdetaljer
- Primärt syfte: Förebyggande
- Tilldelning: Randomiserad
- Interventionsmodell: Parallellt uppdrag
- Maskning: Dubbel
Vapen och interventioner
Deltagargrupp / Arm |
Intervention / Behandling |
|---|---|
|
Aktiv komparator: WIC Fresh Start Program
Participants in this arm receive the Fresh Start program.
|
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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Aktiv komparator: 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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Experimentell: 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.
|
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.
|
|
Aktiv komparator: 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.
|
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.
|
Vad mäter studien?
Primära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
|
Number of Participants Who Redeemed FMNP Vouchers
Tidsram: 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
Tidsram: 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
Tidsram: 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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Sekundära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
|
Number of Participants Who Redeemed Cash Value Vouchers at Farmers' Markets
Tidsram: 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.
Tidsram: 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
|
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.
Tidsram: 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.
Tidsram: 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.
Tidsram: 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.
Tidsram: 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.
Tidsram: 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.
Tidsram: 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.
Tidsram: 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.
Tidsram: 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.
Tidsram: 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.
Tidsram: 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.
Tidsram: 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
Tidsram: 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
Tidsram: 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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Samarbetspartners och utredare
Det är här du hittar personer och organisationer som är involverade i denna studie.
Samarbetspartners
Utredare
- Huvudutredare: Jennifer Di Noia, PhD, Professor, Department of Sociology, William Paterson University
Publikationer och användbara länkar
Den som ansvarar för att lägga in information om studien tillhandahåller frivilligt dessa publikationer. Dessa kan handla om allt som har med studien att göra.
Allmänna publikationer
- 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.
Studieavstämningsdatum
Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.
Studera stora datum
Studiestart
1 juli 2014
Primärt slutförande (Faktisk)
1 juni 2016
Avslutad studie (Faktisk)
1 juni 2016
Studieregistreringsdatum
Först inskickad
29 september 2015
Först inskickad som uppfyllde QC-kriterierna
30 september 2015
Första postat (Uppskatta)
1 oktober 2015
Uppdateringar av studier
Senaste uppdatering publicerad (Faktisk)
30 oktober 2019
Senaste inskickade uppdateringen som uppfyllde QC-kriterierna
25 oktober 2019
Senast verifierad
1 oktober 2019
Mer information
Termer relaterade till denna studie
Ytterligare relevanta MeSH-villkor
Andra studie-ID-nummer
- WIC NEI-12-TX (Annan identifierare: UC Davis)
Plan för individuella deltagardata (IPD)
Planerar du att dela individuella deltagardata (IPD)?
Ja
IPD-planbeskrivning
The data sets used and/or analyzed during this study are available from the corresponding author on reasonable request.
Tidsram för IPD-delning
Data are available for sharing.
Kriterier för IPD Sharing Access
Contact the PI with requests (dinoiaj@wpunj.edu).
Denna information hämtades direkt från webbplatsen clinicaltrials.gov utan några ändringar. Om du har några önskemål om att ändra, ta bort eller uppdatera dina studieuppgifter, vänligen kontakta register@clinicaltrials.gov. Så snart en ändring har implementerats på clinicaltrials.gov, kommer denna att uppdateras automatiskt även på vår webbplats .