A representative sample of all U.S. workers differs greatly in nearly all demographic characteristics from our study sample—nativity, race/ethnicity, age, immigration status, language, educational attainment, poverty status such that any comparisons must be undertaken with caution. Similarly, a representative sample of Hispanic workers in the U.S. may also present difficulties for comparison because a large proportion of such workers are not of Mexican
origin—rather, they include Puerto Ricans, Cubans, Central Americans, South Americans, and ‘‘other Hispanics’’ [U.S. Census, 2001]. Nevertheless, comparisons will be sought with other sample panels to provide a better understanding of the findings of the CAWHS PE Sample.