Effect of reminder letters after health checkups on the consultation behavior of participants with possible hypertension, hyperglycemia, and dyslipidemia: A retrospective cohort study using administrative claims data in Japan

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  • Hoshino Nobuaki
    Department of Health Informatics, School of Public Health, Graduate School of Medicine, Kyoto University Department of Surgery, Kyoto University Graduate School of Medicine
  • Xiuting Mo
    Department of Health Informatics, School of Public Health, Graduate School of Medicine, Kyoto University
  • Takahashi Yoshimitsu
    Department of Health Informatics, School of Public Health, Graduate School of Medicine, Kyoto University
  • Nakayama Takeo
    Department of Health Informatics, School of Public Health, Graduate School of Medicine, Kyoto University

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Abstract

<p>Objectives: Prevention of and early treatment for noncommunicable diseases such as hypertension, hyperglycemia, and dyslipidemia are important, as these diseases are asymptomatic in early stages but can lead to critical conditions such as macro- and microvascular disorders later on. While screening is conducted worldwide, low rates of hospital visits after screening is a common issue. We aimed to investigate the effect of reminder letters on the consultation behavior of screened participants.</p><p>Methods: We used administrative claims data from a database managed by JMDC Inc for participants of health checkups in 2014, 2015, 2016, and 2017, who belonged to a health insurance society. Reminder letters were sent regularly 6 months after checkups to improve participant consultation behavior. Participants who screened positive for hypertension, hyperglycemia, and dyslipidemia, and who were not taking medication for any of these diseases at the time of health checkups, were included in the analyses.</p><p>Results: A total of 1739 participants in 2014, 1693 in 2015, 2002 in 2016, and 2144 in 2017 were included in the analysis for hypertension. The cumulative proportion of hospital visits gradually increased over the course of 12 months after checkups in all years. After 2015, spikes, albeit very small ones, were observed at 6 months after checkups in accordance with the timing of reminder letters. Similar trends were observed for hyperglycemia and dyslipidemia.</p><p>Conclusions: Sending reminder letters is a potentially effective approach to increase hospital visits, but further improvements (ie, multiple reminders) may be necessary to affect enhancements in participant consultation behavior.</p>

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