This issue of the Hispanic Research Center's journal contains three articles which explore diversity among Hispanic American groups (Puerto Ricans, Cubans, and Mexicans) in health status, family structure, and socioeconomic characteristics. In the lead article, "Variations in Hispanic Health Status," Antonio Zavaleta examines differences in demographic characteristics, socioeconomic status, mortality and morbidity, maternal and child health, children's physical growth, and mental health among the groups. He suggests that, in general, those in the lower socioeconomic sectors of Hispanic populations have the poorest health status, regardless of the subpopulation from which they originate. In the second article, "Family Structural Diversity of Hispanic Ethnic Groups," Douglas Gurak describes the diversity in age structures, marital patterns, household composition, fertility, outgroup marriage, and the extent of assimilation into mainstream society among Hispanic groups. He maintains that regional variations in group characteristics suggest that differences in environments, the social processes that influenced settlement in particular areas, and diverse characteristics of the members of a group interact to produce distinct group outcomes. Finally, in "Socioeconomic Patterns and Diversity among Hispanics," David Alvirez compares the demography, educational attainment, employment status, and income levels of three major Hispanic groups and non-Hispanic groups, and suggests that data reported on Hispanics under one board category tend to underestimate the poorer positions of Mexicans and Puerto Ricans relative to Cubans in the United States. (MJL)