Foreign-born emigration from the United States: 1960 to 1970.

This paper presents estimates of emigration of foreign-born persons by age and sex for 1960 to 1970, based on 1960 and 1970 census counts of the foreign-born population, adjusted life table survival rates, and annual statistics on alien immigration published by the Immigration and Naturalization Service. The effects of nativity bias are discussed. It is estimated that approximately 1,140,000 foreign-born persons emigrated between 1960 and 1970, of which 663,000, or 58%, were women and 477,000 were men. Almost one-quarter of the foreign-born emigrants were women 25-44 years of age in 1970. About 175,000 foreign-born persons 65 years and over in 1970 emigrated during the decade. The most significant finding, that more than one million foreign-born persons left the United States between 1960 and 1970, has important implications for U.S. immigration policy and for net immigration data used to estimate the population of the United States.