Observational studyPloS one2018
The ecology of medical care on the westernmost remote island, Yonaguni Island, Japan: A cross-sectional study.
Observational study in PloS one, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
9 citing papers in PubMed.
- Healthcare-Seeking Behaviors in a Depopulated Rural Area of Shiga Prefecture, Japan in 2025: A Descriptive Study Using the Ecology of Medical Care Model.Journal of general and family medicine · 2026Article
- Structural Mapping of Disease-Level Community-Based Care Patterns in Rural Clinics on Remote Islands in Japan: A Questionnaire Survey.Healthcare (Basel, Switzerland) · 2026Article
- Article
- Dispatch of locum doctors to rural clinics on remote islands in Japan.Journal of rural medicine : JRM · 2026Article
- Review
- The Ecology of Medical Care in Shanghai: Temporal Trends and International Comparisons.Risk management and healthcare policy · 2025Article
- A Case of Traumatic Hyphema Diagnoses by Telemedicine Between a Remote Island and the Mainland of Tokyo.Cureus · 2024Article
- Changes in the Impacts of COVID-19 over Time on Families with Older Adults Living on Remote Islands in Japan: A Study in Family Ethnographic Research.Healthcare (Basel, Switzerland) · 2023Article
- The ecology of medical care: access points to the health care system in Austria and other developed countries.Scandinavian journal of primary health care · 2019Article
Corrections and comments
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Authors and funding
2 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Yonaguni Island is a remote and isolated westernmost island in Japan, which is the fastest aging country in the world. This study evaluated the current status of medical supply-and-demand on the island and compared these results with previous surveys carried out in rural parts of Japan. This was a retrospective cohort study conducted at the Yonaguni Municipal Clinic, the only medical facility in Yonaguni Island. The participants were patients who visited the clinic over one year, between July 2015 and June 2016. We calculated the rate per 1,000 persons per month of clinic visits, referrals to off-island medical facilities (e.g., hospitals and specialist clinics), referrals to off-island emergency departments, off-island hospitalizations after referral, home visits, and overnight observations at the clinic. In total, 6,197 patients (males, 46.3%) visited the clinic. The rate of clinic visits per 1,000 persons per month was 516.4 (Standard deviation [SD] 28.1, 95% confidence interval [CI]: 500.5-532.3). The rate per 1,000 persons per month was 14.0 (SD 3.9, 95% CI: 11.8-16.2) for off-island referrals, 3.8 (SD 2.1, 95% CI: 2.6-5.0) for referrals to emergency departments, 4.8 (SD 2.6, 95% CI: 3.3-6.2) for hospitalizations, and 3.2 (SD 1.7, 95% CI: 2.2-4.1) for home visits. The rate of clinic visits was higher in Yonaguni Island than in other rural areas, although the rate of off-island referrals was lower. There were no significant differences between the number of referrals to emergency departments, hospitalizations, and home visits in Yonaguni Island, in comparison to other studies. Our study showed that patients presenting with emergencies had similar rates of healthcare-seeking behavior to those reported in previous studies in Japan; however, the referral rate was lower. We assessed the ecology of medical care in this district by evaluating patient behavior on an isolated island where access to medical care is geographically limited.
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