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Adult health suffers from infant poverty

CORNELL (US) — Children who are poor from birth to age two are twice as likely to have arthritis and high blood pressure as young adults.

A new study says the diseases may materialize as early as age 30, causing patients to work fewer hours and earn less than their peers.

“That being poor when you are in utero doubles your risk for early onset of these diseases is shocking, says lead author Kathleen Ziol-Guest, a postdoctoral associate in the department of policy analysis and management at Cornell University. “You shouldn’t have arthritis or hypertension when you’re 30.”

Published in the Proceedings of the National Academy of Sciences, the research has implications for policies that increase the income of poor families with infants, Ziol-Guest says.

The health of the adults in the study differed markedly depending on family income between the prenatal year and the second year of life. Children from low-income families reported diagnoses of immune-related diseases such as arthritis and hypertension when they became adults at twice the rate as their higher-income peers.

Those diseases significantly diminished work capacity: They had lower annual earnings ($21,600 versus $53,400), fewer annual work hours (1,460 versus 1,877), and smaller hourly earnings ($13.60 versus $26.50).

Conversely, raising the average annual earnings of a low-income child’s family by $5,000 over a four-year interval would result in a 5 percent reduction in the risks of adult arthritis and high blood pressure, Ziol-Guest says.

“Although $20,000 constitutes a sizeable income increase, the reductions in risk for both conditions (one-quarter for hypertension and close to one-half for arthritis) are also quite substantial, given the 19 percent and 11 percent rates, respectively, of hypertension and arthritis among those adults who were poor in early childhood.”

The findings support the hypothesis that children have a sensitive period during which social processes in the environment become embedded in their biology and cause changes in adulthood. Previous studies suggest that prolonged stress induces a tendency toward chronic inflammation in the body that results in chronic disease.

The study points to the importance of policies that increase financial resources available to families with young children, Ziol-Guest says. “Our findings indicate that the incomes of the most economically disadvantaged families should be of greatest concern, particularly during the years when these families have young children.”

Programs like the Earned Income Tax Credit, Temporary Assistance for Needy Families and child tax credits could help boost the income of families during that critical period, Ziol-Guest says.

“Targeting these or similar programs to families with very young children may offer the largest benefit for health and well-being in later life and give us more bang for our buck in an era of rapidly rising health care costs.”

The researchers drew their data from the Panel Study of Income Dynamics (PSID), which has followed a nationally representative sample of about 5,000 families and their children since 1968. Ziol-Guest and her colleagues analyzed data on 1,070 people born into the PSID households 1968-75 who reported information on their health and labor productivity ages 30-41.

Researchers from the University of Chicago, the University of California, Irvine, and the University of British Columbia contributed to the study.

Source: Cornell University

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3 Comments

  1. Cindy

    Sounds like the inability to afford proper nutrients, milk, etc is what does them in. Who knew it was so crucial in those first 2 years.

  2. Rachel

    Asthma is another medical condition with possible connections to childhood poverty. To me, it makes sense that the inadequate housing and living conditions often associated with extreme poverty along with the inability to afford consistent, sufficient medical care can weaken a person and make him more susceptible to becoming ill and make the consequences more extreme.

  3. amsiktik

    thanks very nice posts becariful

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