The Use of Incentives to Promote Healthier Eating in Low-income Communities
Identifying effective strategies for improving healthier eating for low- income populations is both a clinical challenge and a public health priority. Approximately one-fifth of the children in the United States are either overweight or obese. Obesity is even more common in low- income populations as are other related health conditions such as diabetes, hypertension and cardiovascular diseases.
The consumption of fruits and vegetables is strongly associated with the prevention and management of obesity and diabetes and cardiovascular diseases. Overall, only about 38% of Americans consume the recommended servings of vegetables and only 23% consume the suggested amount of fruit. Close to 20% of low- income households do not purchase fruits and vegetables at all.
The proposed research offers an opportunity to investigate a different approach to incentives for healthier eating in a low-income urban population. Specifically, this study will examine a rewards-based incentive for fruit and vegetable purchases with rewards based on cumulative purchases. Previous studies have shown that incentives may be an effective means of promoting behavior change. The proposed study will provide essential data about the impact of targeted incentives to promote acquisition of fruits and vegetables by individuals living in households with young children. The investigators plan to design a subsequent, larger study based on the results of this study. In the proposed study, the investigators will specifically contribute to this knowledge by investigating the effects of rewards-based incentives that provide delayed reinforcement.
SPECIFIC AIMS AND STUDY HYPOTHESES
The goal of this study is to investigate whether incentives to low-income families to encourage purchase of healthier foods can be used to help stem the tide of childhood obesity. Although this study is a randomized trial, a major function is collecting data to be used in the design of a larger randomized controlled trial comparing two different interventions using incentives to promote healthier eating in low-income communities. The investigators will test a supermarket "gift card" with rewards based on purchases of fruits and vegetables during the intervention periods. The specific objective is to determine whether that incentive system-(where the rewards can be used to purchase anything in that supermarket) increases healthier food purchasing practices by low-income families. The primary outcomes are: number of servings, and percent of total food dollars spent on fruits and vegetables (fresh and frozen). The primary hypotheses are:
Households in the intervention group will purchase more fruits and vegetables than controls per week, both during: a) each intervention phase as compared to the baseline period and b) in the follow up phase compared to the baseline period. (Between group comparisons over time of intervention versus control group)
The secondary hypotheses are:
- Households in the intervention group will purchase more fruits and vegetables per week both during: a) each intervention phase as compared to the baseline period and b) in the follow up phase compared to baseline. (Within group comparisons over time)
調査の概要
状態
条件
研究の種類
入学 (実際)
段階
- 適用できない
連絡先と場所
研究場所
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Pennsylvania
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Philadelphia、Pennsylvania、アメリカ、19144
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参加基準
適格基準
就学可能な年齢
健康ボランティアの受け入れ
受講資格のある性別
説明
Inclusion Criteria:
- Self-identified as primary shopper for household of at least 2 people [with at least one child between the ages of 5 and 16 years ]
- Has registered frequent shopper card for Fresh Grocer supermarkets
- Minimum 8 week history of shopping at this Fresh Grocer supermarket
- Shops at the identified supermarket at least 3 times a month
- Capable of providing informed consent.
- Has working contact telephone number and mailing address
- Able to communicate in English
研究計画
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:独身
武器と介入
参加者グループ / アーム |
介入・治療 |
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介入なし:Wait listed control
Participants grocery shop without the intervention for extended baseline and have delayed entrance into the intervention period.
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実験的:Rewards for purchases & topic education
Participants earn reward points at 50% the rate of how much they spend on fruit and vegetables.
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Participants earn reward points at 50% the rate of how much they spend on fruit and vegetables.
The earned reward points are distributed as money added to gift cards to be redeemed at the market.
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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 |
---|---|---|
Servings of fruit and vegetables
時間枠:Participants will be followed for a minimum of 20 weeks
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The number of servings of fruit and vegetables purchased per household per week
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Participants will be followed for a minimum of 20 weeks
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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 |
---|---|---|
Cost of fruit and vegetables
時間枠:Participants will be followed for a minimum of 20 weeks
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The amount spent on fresh and frozen fruit and vegetables per household per week.
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Participants will be followed for a minimum of 20 weeks
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協力者と研究者
捜査官
- 主任研究者:Etienne J Phipps, PhD、Albert Einstein Healthcare Network
研究記録日
主要日程の研究
研究開始
一次修了 (実際)
研究の完了 (実際)
試験登録日
最初に提出
QC基準を満たした最初の提出物
最初の投稿 (見積もり)
学習記録の更新
投稿された最後の更新 (見積もり)
QC基準を満たした最後の更新が送信されました
最終確認日
詳しくは
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。