Johnson T P, Cooper J K
Am J Public Health. 1982 Mar;72(3):257-60. doi: 10.2105/ajph.72.3.257.
Changes in the number and locations of Kentucky counties with a shortage of physicians (using current federal definitions of medical underservice) were examined for the decennial years 1930 to 1980. The number of counties with a physician shortage were found to have increased from four per cent in 1930 to 20 per cent in 1970 and 1980. The per cent of population in physician shortage counties was also found to have increased between 1930 and 1970, but to have declined slightly by 1980. Differences in the average population-to-physician ratios of Appalachian and non-Appalachian counties were significant for every year except 1980.
研究了1930年至1980年这几十年间肯塔基州存在医生短缺情况(采用当前联邦对医疗服务不足的定义)的县的数量及位置变化。发现存在医生短缺的县的数量从1930年的4%增加到了1970年和1980年的20%。还发现,1930年至1970年间,存在医生短缺的县的人口百分比有所增加,但到1980年略有下降。除1980年外,阿巴拉契亚和非阿巴拉契亚县的平均人口与医生比例每年都存在显著差异。