• Yasuaki Saijo, Eiji Yoshioka, Yasuyuki Kawanishi, Yoshihiko Nakagi, Hanley Sharon J B SJB Department of Women's Health Medicine Hokkaido University Graduate School of Medicine Sapporo Japan., and Takahiko Yoshida.
• Department of Social Medicine Asahikawa Medical University Asahikawa Japan.
• J Gen Fam Med. 2018 Jan 1; 19 (1): 4-8.

ObjectivePoor access to a primary care physician may lead to poor control of risk factors for disease. This study investigated whether geographic access to a primary care physician was related to ischemic heart disease and stroke mortality.MethodsRoad-distances from the centroids of the basic unit blocks of the 2010 Japanese Census to the nearest primary care facilities in Hokkaido, northern Japan, were measured using geographic information system (GIS) software. Next, block population-weighted mean road-distances to primary care facilities in all municipalities were calculated. The numbers of deaths from ischemic heart disease and stroke were obtained from the Vital Statistics Bureau. A Bayesian spatial conditional autoregressive (CAR) model was used to analyze relative risk (RR) by road-distance with the numbers of physicians in the municipality included as a covariate.ResultsRelative risk (per 1 kilometer increased) of death from ischemic heart disease to road-distance to the nearest primary care facility was not significantly higher in men (1.108: 95% credible interval [CI] 0.999-1.037) and women (1.023: 95% CI 1.000-1.046). However, RR of death from stroke was significantly higher in men (1.019: 95% CI 1.005-1.032) and women (1.019: 95% CI 1.006-1.033).ConclusionLonger road-distance to a primary care facility may increase the risk of stroke mortality.

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