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Aim <p>Despite the increasing number of older patients with diabetes in Japan, few studies have examined the impact of care interruption on older patients. This study aimed to investigate care interruption in older patients with diabetes.</p> Methods <p>We retrospectively analyzed health insurance claims data from patients aged ≥ 75&#xa0;years between May 2017 and March 2022 in Municipality A. Interruption of diabetes care was defined as a gap of ≥ 4&#xa0;months following ≥ 12&#xa0;months of regular consultations. Monthly healthcare costs were compared between groups with and without interruption of diabetes care, and multivariate logistic regression was performed.</p> Results <p>Among 58,655 individuals in the database, 4125 met the inclusion criteria and 390 (9.5%) experienced care interruption. The average monthly healthcare costs per patient were higher in the interruption group than in the continuation group, both in the unmatched cohort (143,889 vs. 98,624 JPY; <i>p</i> &lt; 0.001) and in the propensity score-matched cohorts (143,889 vs. 103,677 JPY; <i>p</i> &lt; 0.001). Factors associated with care interruption included older age (adjusted odds ratio [AOR] 1.08, 95% confidence interval [CI] 1.06–1.10), female sex (AOR 1.39, 95% CI 1.12–1.73), and duration of diabetes (AOR 0.12, 95% CI 0.05–0.28).</p> Conclusions <p>Interruption of diabetes care in older adults is associated with increased healthcare costs. Early intervention may help reduce care interruptions and healthcare costs.</p>

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Impact of diabetes care discontinuation on healthcare costs in older patients with type 2 diabetes: a retrospective study using medical claims data

  • 期刊论文

  • 发表日期：

    2026年2月6日

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  • Akira Kurishima,
  • Kenjiro Imai,
  • Yusuke Kuwai,
  • Mari Irie,
  • Yoshiharu Fukuda

摘要

Aim

Despite the increasing number of older patients with diabetes in Japan, few studies have examined the impact of care interruption on older patients. This study aimed to investigate care interruption in older patients with diabetes.

Methods

We retrospectively analyzed health insurance claims data from patients aged ≥ 75 years between May 2017 and March 2022 in Municipality A. Interruption of diabetes care was defined as a gap of ≥ 4 months following ≥ 12 months of regular consultations. Monthly healthcare costs were compared between groups with and without interruption of diabetes care, and multivariate logistic regression was performed.

Results

Among 58,655 individuals in the database, 4125 met the inclusion criteria and 390 (9.5%) experienced care interruption. The average monthly healthcare costs per patient were higher in the interruption group than in the continuation group, both in the unmatched cohort (143,889 vs. 98,624 JPY; p < 0.001) and in the propensity score-matched cohorts (143,889 vs. 103,677 JPY; p < 0.001). Factors associated with care interruption included older age (adjusted odds ratio [AOR] 1.08, 95% confidence interval [CI] 1.06–1.10), female sex (AOR 1.39, 95% CI 1.12–1.73), and duration of diabetes (AOR 0.12, 95% CI 0.05–0.28).

Conclusions

Interruption of diabetes care in older adults is associated with increased healthcare costs. Early intervention may help reduce care interruptions and healthcare costs.