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临床试验/NCT07585682
NCT07585682进行中(未招募)不适用

Mechanisms Behind Benefits Framing

University of Chile1 个研究点 分布在 1 个国家目标入组 100,000 人开始时间: 2026年1月26日最近更新:
适应症
干预措施

试验速览

阶段
不适用
状态
进行中(未招募)
发起方
入组人数
100,000
试验地点
1
主要终点
Preventive Dental appointment scheduling

研究概览

简要总结

This study evaluates the effectiveness of different message framings used to encourage uptake of preventive dental check-ups. Patients will be randomized to receive one of several WhatsApp messages offering a full preventive dental check-up, which vary in message length and in how the benefits of the check-up are described.

详细描述

Patients in this trial will be randomized to one of four conditions. In all conditions, patients will receive a WhatsApp message from a clinic network, encouraging them to schedule a preventive dental check-up. The conditions vary in message length and the specificity of the benefits emphasized. Previous pilot studies run by the investigators suggest that adding health- or appearance-related meaning to preventive dental checkup invitation messages may reduce uptake relative to a basic WhatsApp invitation. The present study is designed to replicate this pattern and explore the mechanism(s) underlying this pattern by isolating the role of message length and the references to benefits. Specifically:

  1. Basic Outreach Message: Patients receive a brief outreach message inviting them to schedule a preventive dental check-up and providing basic information about price and availability.
  2. Expanded Neutral Outreach Message: Patients receive a longer outreach message matched in length to the benefit-focused messages (see below), which adds only neutral wording to the Basic Outreach Message without introducing any additional information.
  3. Expanded Generic Benefit Outreach Message: Patients receive a longer outreach message that emphasizes general benefits from a preventive dental check-up, without referencing specific outcomes related to dental health or appearance.
  4. Expanded Specific Benefit Outreach Message: Patients receive a longer outreach message that highlights specific benefits of a preventive dental check-up. Within this condition, patients are further randomly assigned to receive one of four message variants that independently vary (1) whether the benefit emphasized relates to dental health or appearance and (2) whether the benefit is framed as occurring immediately or in the long term.

The researchers primarily ask the following research question: Does emphasizing specific benefits in an expanded outreach message affect dental check-up uptake relative to a basic outreach message? The researchers hypothesize that patients receiving the Expanded Specific Benefit Outreach Message will have lower uptake of dental checkups than patients receiving the Basic Outreach Message. The investigators will also assess the roles of message length and language referencing benefits.

Analysis:

The investigators will run ordinary least squares regressions (OLS) with robust standard errors to predict outcome variables.

研究设计

研究类型
Interventional
分配方式
Randomized
干预模型
Parallel
主要目的
Health Services Research
盲法
Double (Participant, Care Provider)

入排标准

年龄范围
18 Years 至 —(Adult, Older Adult)
性别
All
接受健康志愿者

入选标准

  • Patients aged 18 and above
  • Have a valid mobile phone number that can receive WhatsApp messages, recorded in the hospital network's patient database
  • Attended a non-dental medical appointment the day before the intended contact day OR have a non-dental medical appointment within the week after the intended contact day
  • Have not been contacted in the past two months about preventive dental checkups
  • Have not attended a dental appointment at the hospital network in the past 6 months
  • Note: The partnering clinic agreed to run the study until a concurrent experiment registered at NCT07121673 is finished. The investigators aim to reach 100,000 patients by then, but the final sample size will vary depending on the actual outreach efforts by the end of the study period.

排除标准

  • 未提供

研究组 & 干预措施

Basic Outreach Message

Active Comparator

Basic dental appointment message

干预措施: Basic dental appointment message (Behavioral)

Expanded Neutral Outreach Message

Experimental

Expanded neutral dental appointment message

干预措施: Expanded neutral dental appointment message (Behavioral)

Expanded Generic Benefit Outreach Message

Experimental

Expanded generic benefit dental appointment message

干预措施: Expanded generic benefit dental appointment message (Behavioral)

Expanded Specific Benefit Outreach Message

Experimental

Expanded specific benefit dental appointment message

干预措施: Expanded specific benefit dental appointment message (Behavioral)

结局指标

主要结局

Preventive Dental appointment scheduling

时间窗: Within 7 days of receiving the WhatsApp message

Whether the patient schedules a preventive dental check-up

次要结局

  • Preventive Dental appointment attendance(Within 30 days of receiving the WhatsApp message)
  • Interest in scheduling(Within 7 days of receiving the WhatsApp message)
  • Any dental appointment scheduling(Within 7 days of receiving the WhatsApp message)

研究者

发起方
University of Chile
申办方类型
Other
责任方
Sponsor

研究点 (1)

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