Primary care physician supply and life expectancy

(JAMA Network) This study used U.S. population data to identify changes in the supply of primary care physicians across counties from 2005 to 2015 and the association with life expectancy and other outcomes. A greater supply of primary care physicians was associated with better life expectancy but the per capita supply of primary care physicians across counties decreased, mostly because of disproportionate losses in some counties and population increases in general.