This study evaluated the effectiveness of different recruitment messages for encouraging enrollment in a digital mental health intervention (DMHI) for anxiety among 1,600 anxious patients in a large healthcare system. Patients were randomly assigned to receive a standard message, or one of five messages designed to encourage enrollment: Three messages offered varying financial incentives, one message offered coaching, and one message provided consumer testimonials. Patients could then click a link in the message to visit the DMHI website, enroll, and start the first session. We examined the effects of message features and message length (short vs. long) on rates of site clicks, enrollment, and starting the first session. We also tested whether demographic and clinical factors derived from patients' electronic health records were associated with rates of enrollment and starting the first session to understand the characteristics of patients most likely to use DMHIs in this setting. Across messages, 19.4% of patients clicked a link to visit the DMHI website, but none of the messages were significantly associated with rates of site clicks, enrollment, or starting the first session. Females (vs. males) had a greater probability of enrollment. No other demographic or clinical variables were significantly associated with enrollment or starting the first session. Findings provide guidance for resource allocation decisions in larger scale DMHI implementations in healthcare settings.

中文翻译：

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消息传递对数字焦虑干预参与度的影响最小。

本研究评估了不同招募信息对于鼓励大型医疗系统中 1,600 名焦虑患者参加数字心理健康干预 (DMHI) 治疗焦虑症的有效性。患者被随机分配接收一条标准消息，或五条旨在鼓励注册的消息之一：三条消息提供不同的经济激励，一条消息提供指导，一条消息提供消费者推荐。然后，患者可以单击消息中的链接访问 DMHI 网站、注册并开始第一个疗程。我们研究了消息功能和消息长度（短与长）对网站点击率、注册率和启动第一个会话的影响。我们还测试了源自患者电子健康记录的人口统计和临床因素是否与注册率相关，并开始第一次会议，以了解在这种情况下最有可能使用 DMHI 的患者的特征。在消息中，19.4% 的患者点击链接访问 DMHI 网站，但没有一条消息与网站点击率、注册率或开始第一次治疗的率显着相关。女性（相对于男性）的入学概率更大。没有其他人口统计或临床变量与注册或开始第一次会议显着相关。研究结果为医疗保健环境中大规模 DMHI 实施的资源分配决策提供了指导。