MHAS Mexican health and aging study
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Study Goals: Why Study Aging in Mexico?

  • photoMexico is home to more immigrants to the U.S. than any other country. The background and health of Mexican-born migrants will imprint on the U.S. for the foreseeable future.

  • Mid- and late-life health in Mexico is shaped by an unusual interaction between current chronic disease risks and residual effects of infectious diseases in early life. Does this process yield high levels of chronic disease, symptoms, and disability in old age?

  • Despite low levels of education and high rates of unhealthy behaviors, Mexican-born migrants appear to have a health advantage over Mexican-Americans.

  • Are Mexican migrants positively selected for good health from a population in relatively poor health? The seeming “Hispanic paradox” can only be understood by describing health dynamics in the “sending” population.

  • Little is known about health transitions in a population characterized by life-long economic disparities, strategic migration behaviors, and limited capital markets.

  • Over time, does migration to the U.S. improve the living conditions & health of migrants, their elderly parents, or whole families?
The MHAS design was motivated by these research questions, and has the overall goal of locating research on the unique health dynamics of Mexico in a broad socioeconomic context. The specific aims of the study are to:
  • examine the aging processes and its disease and disability burden in a large representative panel of older Mexicans;

  • evaluate the effects of individual behaviors, early life circumstances, migration and economic history, community characteristics, and family transfer systems on multiple health outcomes;

  • compare the health dynamics of older Mexicans with comparably aged Mexican-born migrants in the U.S. and second generation Mexican-American using similar data from the U.S. population (for example the biennial Health and Retirement Study HRS/AHEAD and the NHANES III) to assess the durability of the migrant health advantage;

  • assess the health of all components of the population from which migrants are selectively recruited: Mexican-born migrants living in the US, migrants who return to Mexico after various length of time in the U.S., and Mexicans with no residential history in the U.S.; and,

  • consider the ways in which intergenerational transfer systems affect old-age health dynamics in a country where migration is commonplace and remittances may repay prior investments or insure against uncertainty in old age.