Crawford M H, Goldstein E
Am J Phys Anthropol. 1975 Jul;43(1):133-40. doi: 10.1002/ajpa.1330430117.
Polish Hill is an urban, ethnic enclave of approximately 3000 residents residing in a 25-block area of Pittsburgh. This paper documents changes in the fertility, morbidity, and mortality patterns in the community from the turn of the century to the present. The demographic reconstruction is based upon baptismal and marriage records, the administration of demographic proformae and population censuses. The high mortality, morbidity, and fertility variance suggest that the immigrant population has experienced a period of high opportunity for selection in the early 1900's and that Crow's index was gradually reduced to its present level.
波兰山是匹兹堡一个有大约3000居民的城市民族聚居区，占地25个街区。本文记录了该社区从世纪之交到现在的生育、发病和死亡模式的变化。人口统计重建基于洗礼和婚姻记录、人口统计学表格的管理以及人口普查。高死亡率、发病率和生育率差异表明，移民人口在20世纪初经历了一段高选择机会时期，并且克劳指数逐渐降至目前水平。
