Based on the analysis of data from the National
Child Abuse and Neglect Data System and the U.S. Census Bureau's
American Community Survey, the effect appears strongest in counties
with high poverty.
Approximately every minute, about six maltreatment referrals are
given to state and local agencies in the U.S., according to the
Centers for Disease Control and Prevention.
It's not possible to say income inequality actually causes child
maltreatment, but, "we know the reverse hypothesis is not true,"
John Eckenrode said. "Child maltreatment does not cause income
Ekenrode, a psychologist at Cornell University in Ithaca, New York,
led the study.
"Also we have ruled out some possible alternate explanations in our
study, such as level of education, public assistance levels, child
poverty rates and state-level variations in rates of maltreatment,"
he told Reuters Health.
"Given what we already know, it makes sense that income inequality
could create a social context where child maltreatment happens,"
said Kate Pickett, a social epidemiologist at the University of York
in the United Kingdom.
"This adds to past evidence that greater income inequality harms us
all," she said.
Researchers looked at data on 3,142 U.S. counties between 2005 and
2009. They found that rates of child maltreatment ranged widely,
from 0.2 percent to 3.1 percent of children.
Using statistical methods to gauge income inequality, they found a
steep rise in the rate of child maltreatment with rising inequality.
The relationship held after researchers adjusted for poverty itself,
and other factors such as the racial and ethnic makeup of regions,
education levels and the number of people receiving public
Where inequalities are most extreme, communities may become more
polarized, with the affluent group influencing where public aid
money goes, or what programs are made available in the community,
said Dr. Ruth Gilbert, a clinical epidemiologist at University
College London in the UK.
"Where the state or federal government is a key provider of
services, such as day care and education," Gilbert said, "then you
may have situations where poorer children mingle with middle-class
kids and this helps create a better understanding between the two
Past studies have shown that income inequality can create an
environment toxic to human health (see Reuters Health article of
October 9, 2013, here: http://reut.rs/17o0iAZ).
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Even though the study doesn't prove causality, Pickett said, "it
fits in well with mechanisms we would expect to be underpinning the
income inequality relationship."
"We need advocacy and action at a grass-roots level in these
communities," Pickett added.
"If communities come together around some common purpose, such as
asking for more childcare services, then, even if they don't get
what they asked for, there is a stronger sense of community
well-being," she said.
Writing in the journal Pediatrics, the researchers suggest a
"comprehensive approach" is needed to address the problem.
State and federal money could be used to improve and expand
programs with successful track records, such as the Nurse Family
Partnership program, Eckenrode said. Currently that program can
reach only about 30,000 families in the U.S. per year.
"We could scale up that and other proven programs even further," he
Federal support for maternity or paternity leave, or daycare
education costs, is "not seen in the U.S. as much as here in the
UK," Gilbert said.
"Where the state (or federal) government is a key provider of
services, such as day care and education, then you may have
situations where poorer children mingle with middle-class kids and
this helps create a better understanding between the two classes,"
"The more distance between the two social classes, the less likely
the poor will receive services and support," Gilbert said.
Pediatrics, online Feb. 10, 2014.
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