Eguchi Kana, Kubota Takeaki, Koyanagi Tomoyoshi, Muto Manabu
Department of Informatics, Graduate School of Informatics, Kyoto University, Kyoto, Japan.
Department of Real World Data Research and Development, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
Online J Public Health Inform. 2025 Mar 25;17:e57084. doi: 10.2196/57084.
Although many studies have used smartphone apps to examine alcohol consumption, none have clearly delineated long-term (>1 year) consumption among the general population.
The objective of our study is to elucidate in detail the alcohol consumption behavior of alcohol drinkers in Japan using individual real-world data. During the state of emergency associated with the COVID-19 outbreak, the government requested that people restrict social gatherings and stay at home, so we hypothesize that alcohol consumption among Japanese working people decreased during this period due to the decrease in occasions for alcohol consumption. This analysis was only possible with individual real-world data. We also aimed to clarify the effects of digital interventions based on notifications about daily alcohol consumption.
We conducted a retrospective study targeting 5-year log data from January 1, 2018, to December 31, 2022, obtained from a commercial smartphone health care app (CALO mama Plus). First, to investigate the possible size of the real-world data, we investigated the rate of active users of this commercial smartphone app. Second, to validate the individual real-world data recorded in the app, we compared individual real-world data from 9991 randomly selected users with government-provided open data on the number of daily confirmed COVID-19 cases in Japan and with nationwide alcohol consumption data. To clarify the effects of digital interventions, we investigated the relationship between 2 types of notification records (ie, "good" and "bad") and a 3-day daily alcohol consumption log following the notification. The protocol of this retrospective study was approved by the Ethics Committee of the Kyoto University Graduate School and Faculty of Medicine (R4699).
尽管许多研究使用智能手机应用程序来检测酒精消费情况，但尚无研究明确描述普通人群的长期（>1年）酒精消费情况。
我们研究的目的是使用个体真实世界数据详细阐明日本饮酒者的酒精消费行为。在与新冠疫情相关的紧急状态期间，政府要求人们限制社交聚会并居家，因此我们假设在此期间日本上班族的酒精消费量因饮酒场合减少而下降。只有通过个体真实世界数据才能进行此分析。我们还旨在阐明基于每日酒精消费通知的数字干预措施的效果。
我们针对从一款商业智能手机医疗应用程序（CALO mama Plus）获取的2018年1月1日至2022年12月31日的5年日志数据进行了一项回顾性研究。首先，为了调查真实世界数据的可能规模，我们调查了这款商业智能手机应用程序的活跃用户率。其次，为了验证应用程序中记录的个体真实世界数据，我们将9991名随机选择用户的个体真实世界数据与政府提供的日本每日新冠确诊病例数的开放数据以及全国酒精消费数据进行了比较。为了阐明数字干预措施的效果，我们调查了两种类型的通知记录（即“良好”和“不良”）与通知后3天的每日酒精消费日志之间的关系。这项回顾性研究的方案已获得京都大学医学研究生院伦理委员会的批准（R4699）。
