[Objective]
It is necessary to respond to population structure changes resulting from the rapid aging of Japan’s population. This study estimates the medical resources that will be needed in the future based on the current regional demographics and demand.
[Method]
Medical claims data created by medical institutions are used to supply information for medical functions. The research period spanned from 2014 to 2022. The current number of patients at medical institutions was expressed as a population ratio of each municipality. The local resident areas were defined as city, town, or village, and the area for those working at a company was defined as Toyama City. The number of daily outpatient visits was calculated using the number of weekdays each year, and the number of patients per hospital bed was calculated using the number of days each year. For future projections, the number of patients was based on 2022, the population was based on 2021, and the current share by region was assumed to be maintained in the future. The number of patients was estimated by calculating the prevalence of each disease by gender, age group, and by using future population projections.
[Results]
Due to the impact of COVID-19, the number of outpatients and inpatients decreased and has not returned to pre-COVID-19 levels. Regarding hospitalizations, the number of beds per day decreased for patients not requiring surgery, and increased for patients requiring surgery. The unit price per day for hospitalization has increased. Future projections for outpatient care show that the number of patients will increase until 2025, but will then decline. There was no projected change in medical expenses per day. Projections for future hospitalizations reveal that the number of patients will continue to increase until 2040. The daily medical costs for patients with surgery were approximately twice as high as those without surgery. Overall, costs were on a downward trend. Due to the increase in the number of hospitalized patients, there will be a shortage of 18 hospital beds in 2025 and 49 beds in 2040.
[Conclusion]
In areas where the population is aging, hospital systems, functions, and future projections have revealed the need to review hospital functions. The number of outpatients remains unchanged from the current situation, but hospitalizations are projected to rise. Since it is unlikely that the number of hospital beds can be increased, we will either shorten the length of hospital stays and increase the number of patients admitted, or we will limit the number of patients by stopping low-incidence diseases. In either case, collaboration and coordination with local hospitals is important. Additionally, as the number of patients who cannot be hospitalized increases, the need for home medical care will increase. Thus, hospitals should consider their role in home medical care. Regarding management, more efficient operations will be needed as the daily unit price will decrease.
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