Predicting Attrition in a Text-Based Nutrition Education Program: Survival Analysis of Text2BHealthy
Predicting Attrition in a Text-Based Nutrition Education Program: Survival Analysis of Text2BHealthy
复制标题
DOI：
10.2196/mhealth.9967
复制
发表时间：
2019-01-21
影响因子：
5
通讯作者：
Lachenmayr, Lisa
中科院分区：
文献类型：
--
作者：
Grutzmacher, Stephanie K.;Munger, Ashley L.;Lachenmayr, Lisa
背景：基于文本的程序已被证明可以有效地解决各种各样的健康问题。虽然很少有研究探讨短消息服务（SMS）短信程序的特点，预测参与者的保留和流失，功能的SMS短信程序，如程序的持续时间和强度，消息内容，和参与者的上下文，可能会产生影响。停止消息的影响-消息与如何退出的SMS短信programme-may be particularly important to investigation.Objective：本研究的目的是描述从Text 2BHealthy，一个基于文本的营养和体力活动的低收入小学儿童的家长促进计划，并确定消息的内容和收到的停止消息的数量对消耗的影响磨耗。使用来自972名参加Text 2BHealthy的父母的数据，我们创建了Kaplan-Meier曲线，以估计不同SMS短信类型（包括营养，体力活动，停止和其他消息）的程序持续时间差异。协变量，包括农村和收到的停止messages.Results的数量：保留率的学校范围从74%（60/81）到95.0%（132/139），平均留存率为85.7%（833/972）在所有学校。项目持续时间从7天到282天不等，中位项目持续时间为233天，平均项目持续时间为211.7天。在那些辍学的人中，项目持续时间从7天到247天不等，中位数为102.5天。与接受有关营养、体力活动或其他主题的信息相比，接受停止信息增加了损耗的概率（风险比=51.5，95%CI 32.46-81.7; P
Background: Text-based programs have been shown to effectively address a wide variety of health issues. Although little research examines short message service (SMS) text messaging program characteristics that predict participant retention and attrition, features of SMS text message programs, such as program duration and intensity, message content, and the participants' context, may have an impact. The impact of stop messages-messages with instructions for how to drop out of an SMS text message program-may be particularly important to investigate.Objective: The aim of this study was to describe attrition from Text2BHealthy, a text-based nutrition and physical activity promotion program for parents of low-income elementary school children, and to determine the impact of message content and number of stop messages received on attrition.Methods: Using data from 972 parents enrolled in Text2BHealthy, we created Kaplan-Meier curves to estimate differences in program duration for different SMS text message types, including nutrition, physical activity, stop, and other messages. Covariates, including rurality and number of stop messages received, were included.Results: Retention rates by school ranged from 74% (60/81) to 95.0% (132/139), with an average retention rate of 85.7% (833/972) across all schools. Program duration ranged from 7 to 282 days, with a median program duration of 233 days and an average program duration of 211.7 days. Among those who dropped out, program duration ranged from 7 to 247 days, with a median program duration of 102.5 days. Receiving a stop message increased the probability of attrition compared with receiving messages about nutrition, physical activity, or other topics (hazard ratio=51.5, 95% CI 32.46-81.7; P