Navigation Links
Children's blood lead levels linked to lower test scores
Date:10/19/2009

DURHAM, N.C. -- Exposure to lead in early childhood significantly contributes to lower performances on end-of-grade (EOG) reading tests among minority and low-income children, according to researchers at Duke University and North Carolina Central University.

"We found a clear dose-response pattern between lead exposure and test performance, with the effects becoming more pronounced as you move from children at the high end to the low end of the test-score curve," said lead investigator Marie Lynn Miranda, director of the Children's Environmental Health Initiative (CEHI) at Duke's Nicholas School of the Environment.

"Given the higher average lead exposure experienced by African-American children in the United States, our results show that lead does in fact explain part of the observed achievement gap that blacks, children of low socioeconomic status and other disadvantaged groups continue to exhibit in school performance in the U.S. education system, compared to middle- and upper-class whites," Miranda said.

The study, published online in the peer-reviewed journal NeuroToxicology, linked data on blood-lead levels from the North Carolina Childhood Lead Poisoning Prevention Program surveillance registry to EOG reading test scores for 4th graders in all 100 of the state's counties.

Researchers used innovative methods, including the use of a statistical approach called quantile regression, to measure the contribution of lead exposure to declining levels in children's EOG scores.

Their analyses revealed that early childhood exposure to lead, the family's poverty status and parental education all account for test-score declines. On average, exposure to lead accounts for between 7 percent and 16 percent of the decline, with the larger declines associated with higher blood-lead levels.

By comparison, they found the family's poverty status, as indicated by enrollment in a free or reduced-price school lunch prog
'/>"/>

Contact: Tim Lucas
tdlucas@duke.edu
919-613-8084
Duke University
Source:Eurekalert

Page: 1 2

Related biology news :

1. Super sticky barnacle glue cures like blood clots
2. Blood vessel builders
3. Blood counts are clues to human disease
4. New blood-thinning drug safer than rat poison
5. University of Iowa scientists use blood-brain barrier as therapy delivery system
6. New blood tests promise simple, cost-effective diagnosis of gastrointestinal cancers
7. Diesel exhaust is linked to cancer development via new blood vessel growth
8. New information about how fat increases blood pressure could help identify those at risk
9. Gene signal GS-101 data shows safe and effective inhibition of ophthalmic blood vessel growth
10. Blood-flow metabolism mismatch predicts pancreatic tumor aggressiveness
11. Glow-in-the-dark red blood cells made from human stem cells
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/28/2014)... in German . ... with the help of sophisticated assembly lines. Mobile assembly carriers, ... part of these assembly lines. In the case of a ... stages arranged in a precise spatial and chronological sequence, resulting ... , The creation of such an assembly line at molecular ...
(Date:8/28/2014)... to alert the world to Global Warming, has called ... stored underground. He says that Carbon Capture, combined with ... to avoid global warming getting out of control over ... York) made the call during his presentation to the ... are meeting to discuss Carbon Capture and Storage. ...
(Date:8/28/2014)... action is needed to ensure safeguards are in place ... PLOS ONE , researchers from Monash University, Stellenbosch ... combining results from different studies - to look at ... to determine whether they actually protect biodiversity. , ... an area from human exploitation made common sense, however, ...
Breaking Biology News(10 mins):Nanoscale assembly line 2Nanoscale assembly line 3Global warming pioneer calls for CO2 to be taken from atmosphere and stored underground 2Protected areas proven to protect biodiversity 2
... way to fight obesity-related illness has been uncovered, thanks ... Western Reserve University School of Medicine. The collaborators, ... and Cornell University, discovered the essential nutrient vitamin E ... obesity. "The implications of our findings could have a ...
... A research team led by Cornell University,s Creative Machines ... to witness virtual creatures evolving their squishy, muscle-like features in ... concepts from developmental biology and how nature builds complex animals ... of bizarre, simulated robots that evolve a diverse series of ...
... disease affecting a person,s ability to coordinate and control ... in a finger will eventually lead to difficulty in ... without assistance. Since the 1950s research has shown that ... dopamine in their brains, which is involved in sending ...
Cached Biology News:Vitamin E identified as potential weapon against obesity 2Vitamin E identified as potential weapon against obesity 3New research examines connection between inflammatory stimulus and Parkinson's disease 2New research examines connection between inflammatory stimulus and Parkinson's disease 3
(Date:8/29/2014)... According to a new market report published by ... was valued at USD 3,754.6 million in 2012 and is ... a CAGR of 5.9% from 2013 to 2019. , Nearly ... afflicted by bone and joint disorders, and this number is ... and will continue to increase the demand for orthobiologics. Other ...
(Date:8/29/2014)... 29, 2014 /PRNewswire/ - iCo Therapeutics ("iCo" or ... financial results for the six months ended June ... in Canadian dollars and presented under International Financial ... Highlights , Announced top-line results related ... endpoint for subjects enrolled in the Phase 2 ...
(Date:8/29/2014)... 29, 2014 Three Lawrence Livermore ... Hydrogen Production R&D Award for their ... water using sunlight. , Shared with collaborators from ... University of Nevada, Las Vegas (UNLV), the award ... of photoelectrochemical solar-hydrogen production and corrosion processes. , ...
(Date:8/29/2014)... MA (PRWEB) August 29, 2014 A ... in the biotech start-up dense realm of Boston-Cambridge, is ... and able investors. James Sherley, the Director of Boston’s ... increasing the local and national visibility of his company ... September 2013. , In addition to a social media ...
Breaking Biology Technology:Global Orthobiologics Market to Reach $5,519.9 Million by 2019: Transparency Market Research 2Global Orthobiologics Market to Reach $5,519.9 Million by 2019: Transparency Market Research 3iCo Therapeutics Announces Second Quarter 2014 Financial Results 2iCo Therapeutics Announces Second Quarter 2014 Financial Results 3iCo Therapeutics Announces Second Quarter 2014 Financial Results 4Livermore Team Awarded for Hydrogen Production Research 2The Adult Stem Cell Technology Center, LLC Participates in Multiple Stem Cell and Regenerative Medicine Conferences Before Year End 2The Adult Stem Cell Technology Center, LLC Participates in Multiple Stem Cell and Regenerative Medicine Conferences Before Year End 3The Adult Stem Cell Technology Center, LLC Participates in Multiple Stem Cell and Regenerative Medicine Conferences Before Year End 4
... demonstrates company,s commitment to sustainabilityLAS VEGAS, April 22 ... commitment to protecting tomorrow today through its sustainability ... Region for Bayer CropScience, presented Tom Lovelace, United ... million endowment over the next four years to ...
... Cohen to be inducted into National Academy of Sciences for ... Sir Philip Cohen of Scotland,s University of Dundee ... (NAS) during its 146th annual meeting on Saturday, April 25 ... in original scientific research. Sir Philip is one of only ...
... (Pink Sheets: MNCN), an innovative, global wellness solutions company, ... (BPS), operating under the MPS-BioPharm name (MPS), received both ... to utilize MPS, Equity by Design ... fit and purpose related to design, constructability and cleanliness. ...
Cached Biology Technology:Bayer CropScience Donates $1.1 Million to United Fresh Research & Education Foundation to Create the Center for Global Produce Sustainability 2Bayer CropScience Donates $1.1 Million to United Fresh Research & Education Foundation to Create the Center for Global Produce Sustainability 3Bayer CropScience Donates $1.1 Million to United Fresh Research & Education Foundation to Create the Center for Global Produce Sustainability 4United States Recognizes Leading Scottish Scientist for Disease Research 2Mach One BioPharm Process Operating Group Receives Contract From American Beef Processors 2Mach One BioPharm Process Operating Group Receives Contract From American Beef Processors 3
These 25x25 square No.1 Corning cover glasses are made from No. 0211 zinc titania glass and are 0.16 to 0.19mm thick. • Approx. Pcs Oz : 102...
... Life Science FLA-8000 Fluorescent Image Analyzer features ... single laser imaging system. This powerful new ... with fluorescent dyes or radioisotopes at resolutions ... laboratories. Speed, image quality and flexibility make ...
...
The model 55D Rocking Shaker provides the same Reliable quality as the 55S, but double the value. The 55D gives you an additional platform with a height of 3.25 in....
Biology Products: