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This study aimed to evaluate the impact of the policy to reduce the reimbursement fee for percutaneous endoscopic gastrostomy (PEG) on the number of PEG procedures performed among older adults with dementia. Interrupted time series (ITS). We used the monthly aggregated data of the number of PEG procedures in older adults with dementia (both broad and narrow definitions), between 2012 and 2018, from the claims data in Fukuoka Prefecture, Japan. A single ITS design was used to estimate changes in the outcome following each intervention (i.e., first, second, and third interventions performed in 2014, 2015, and 2016, respectively). A controlled ITS design was applied to estimate the effects after the sequence of interventions (pre-intervention: 2012–2014; post-intervention: 2016–2018). The control group comprised patients with malignant head and neck tumors who underwent PEG procedures outside the scope of this policy restriction. The number of PEG procedures decreased significantly only in the month wherein the third intervention was introduced (broad definition: IRR = 0.11, CI = 0.03–0.49; narrow definition: IRR = 0.15, CI = 0.03–0.75). No significant difference was observed between the treatment and control groups during the post-intervention phase. The impact of fee-revision policy for PEG on the decrease in PEG procedures among older adults with dementia is remarkably minimal. It is difficult to reduce unnecessary PEG procedures by relying on this financial incentive alone. Policy decision-makers should consider methods to prevent inappropriate use of artificial nutrition for older adults at their end-of-life stage by reforming the health delivery system. [ABSTRACT FROM AUTHOR]

Metabolic syndrome (MetS) prevalence has increased globally with considerable morbidity and economic burden at both individual and national levels. Japan is the first and only country that has introduced a nationwide lifestyle guidance intervention program to manage and control MetS. We conducted a quasi-experiment approach—regression discontinuity design—to evaluate the impact of this intervention on health outcomes at the population level. We retrospectively collected data of adults aged ≥35 years who participated in health checkups in 2015. Age in 2015 was used as the assignment variable, and an age of 40 years old was the threshold because those with MetS aged ≥40 were required to receive lifestyle guidance intervention. Among 26,772 MetS adults, those who received the intervention had significant reductions in obesity measurements (bodyweight, waist circumference, and body mass index [BMI]) after 1 year of this intervention. Blood pressure was also significantly reduced in men after 1 year of undertaking the intervention. The results were similar when including demographic, socioeconomic, and behavioral covariates and using alternative functional forms to estimate the impact, or when bandwidths around intervention thresholds were changed. Our results showed that lifestyle guidance intervention for MetS has an important impact on weight loss and blood pressure reduction at the population level. This intervention could address the high burden of obesity and cardiovascular diseases in Japan and other countries with an unmet need for MetS prevention and management. • Japan has introduced a lifestyle guidance intervention program since 2008. • This program targets middle-aged people with metabolic syndrome. • This study evaluated the impact of this program at the population level. • We applied a quasi-experiment approach, which may be less affected by confounders. • Significant decreases in body weight and blood pressure were evident. [ABSTRACT FROM AUTHOR]