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The fast-growing prevalence of Parkinson's disease (PD) creates a heavy burden for society and the health care system. Although different ways to mitigate the economic burden of PD have been discussed in the literature, including several effective treatments, few studies have paid attention to the effect of care rehabilitation (CR) on PD costs over a long-term care period. This study tracked medical expenses, care costs, and total costs of elderly individuals with PD for 3 years based on medical claims data merged with long-term care insurance (LTCI) claims data, and determined whether CR reduced PD costs. Using a retrospective, longitudinal cohort design, 3950 elderly individuals with PD who received LTCI services from April 2014 to March 2017 in Fukuoka Prefecture, Japan were followed. PD costs were compared between the CR group and the non-CR group, and a hierarchical linear model was used to examine whether CR was associated with medical expenses, care costs, and total costs. The mean value of total costs in fiscal years 2014, 2015, and 2016 were ¥3,124,944 (US$29,504), ¥3,328,398 (US$31,425), and ¥3,615,892 (US$34,140), respectively. In a hierarchical linear model, CR alone was not associated with medical expenses and care costs; additionally, CR had a positive association with higher total costs. However, the interaction term between CR and baseline care needs level significantly reduced care costs and total costs. That indicates that if older PD patients with higher care needs level receive CR, their care costs and total costs will be reduced. Further research is needed to clarify how CR reduces these patients' costs. [ABSTRACT FROM AUTHOR]

This study examined the impact of expenditures for preventive health care services on health care costs among those insured with health insurance societies in Japan using cross-sectional and longitudinal designs. The subjects of the study were those insured with Japan's 1481 health insurance societies belonging to the National Federation of Health Insurance Societies in 2003 and 2007. Multiple regression analyses were conducted using the forced entry method. Case rates, number of service days, and health care costs were used as dependent variables, and preventive health care expenditures, average age, number of the insured, gender ratio, average monthly salary, and dependents ratio were used as independent variables. Expenditures for preventive health care services showed significant negative correlations with both the number of service days and health care costs for inpatient and outpatient services in 2003 and 2007. The results showed that expenditures for preventive health care services had a negative relationship with health care costs. Thus, these findings support the effects of investment in preventive health activities as promoted by health insurance societies to reduce health care costs. ( Population Health Management 2014;17:42-47) [ABSTRACT FROM AUTHOR]

The co-payment rate for health care services for insured people increased from 10% to 20% in 1997, and then to 30% in 2003 under the Employed Health Insurance System in Japan. The purpose of this study is to quantify the relationship between average monthly salary and health care service demand by different co-payment rates among the insured of health insurance societies in Japan. Data from the National Federation of Health Insurance Societies from 1996, 2002, and 2007 were analyzed. Indicators of health care service demand included case rates and number of service days per case for inpatient, outpatient, and dental services. The authors evaluated the relationship of average monthly salary with these indicators using multiple regression analyses for each of the 3 years. In the study, the average monthly salary showed a high positive correlation with outpatient and dental case rates for all 3 years. The magnitude of the relationship of average monthly salary to health care service demand was intensified as patient co-payment increased from 10% to 20%. However, it did not change when the co-payment increased from 20% to 30%. The increase in patient co-payment rate from 20% to 30% did not intensify the relationship between average monthly salary and health care service demand among the insured of health insurance societies in Japan. ( Population Health Management 2013:16:58-63) [ABSTRACT FROM AUTHOR]