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The contribution of locational factors to regional variations in office-based physicians in Germany
|Journal||Health Policy; DOI:
There is considerable literature showing that regional variation in the number of office-based physicians is rather explained by factors such as financial attractiveness of a region of employment opportunities for spouses than by health care needs of the population. It remains unclear, however, how much of the variation is explained by each of these determinants to the measured variation in Germany. Physician density is regressed on a well-defined set of explanatory variables that were identified as determinants of physician location. Regression-based decomposition was applied to decompose the variation in physician density into the percentage contribution of each of the determinants. The results show that varying health care needs of the population explained less than 5.2% of the variation in physician density. Percentage of population with private health insurance explained 14% of the variation in GP density and between 2% and 6% of the variation in specialists' density. For specialists, a higher share of variance was attributable to the variables measuring sociocultural amenities of a region compared to GPs.