but it is not a sufficient explanation. Why mortality rates are comparable for U.S.-born Hispanics and whites, however, remains a puzzle.

Hispanics also experience favorable birth outcomes in terms of birthweight and infant mortality, another case in which they fare much better than would be expected given their socioeconomic status. In 2001, Hispanics’ infant mortality rate of 5.4 per 1,000 live births compared favorably with those of 5.7 for whites and 13.5 for blacks. Cubans (4.2), Central and South Americans (5.0), and Mexicans (5.2) all had lower infant mortality rates than whites, while Puerto Ricans (8.5) fared better than blacks but worse than whites.86

Experts often invoke protective cultural and social behaviors of immigrants to explain their advantage in birth outcomes relative to their U.S.-born counterparts. However, since second-generation Hispanic women also have relatively favorable birth outcomes compared with white women of comparable socioeconomic status, cultural explanations do not suffice. Other assets in the Hispanic health ledger include a lower incidence of several major cancers and relatively low rates of activity limitation (e.g., climbing stairs, getting dressed) compared with whites, along with mental health profiles that resemble those of whites. In 2000, for example, the age-adjusted death rate from cancer was 134.9 per 100,000 for Hispanics, compared with 200.6 per 100,000 for whites. Hispanics also smoke less than whites; the exception is Puerto Ricans, who smoke at similar rates.87

Hispanics also experience several health liabilities, diabetes and hypertension being by far the most severe. The rising prevalence of Hispanic adults considered overweight or obese likely contributes to higher rates of both conditions, as well as to cardiovascular disease. Although the U.S. epidemic of overweight and obese adults affects all racial and ethnic groups, it is particularly severe for Hispanics. Among Mexicans, 29 percent of men and 40 percent of women are considered obese, compared with 27 percent and 30 percent, respectively, of white men and women.88

Trends in overweight among Hispanic youths are particularly worrisome. Hispanic children and adolescents—Mexican and Puerto Rican girls in particular—are much more likely than whites to be overweight. Girls of Mexican origin are nearly twice as likely as white girls to be overweight, while Mexican-origin boys are more than twice as likely as white boys to be overweight. Even more troubling, rates of overweight have risen faster for Hispanic than for white youths (see Figure 5-7). Over the last quarter century or so, the prevalence of overweight preadolescent (ages 6-11) Mexican youths doubled—rising from 13 to 27 percent for boys and from 10 to

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