QUESTION: Permission to use Dr Balzer's slides, 01 May 2003,
Minnesota United States of America
Good Morning from Minnesota. I would like to use some of Dr. Ben Balzer's slides from his power point presentation for a series of Lead Case management workshops we are conducting in Minnesota. How do I obtain permission to use the slides? Thank you very much.
Myron Falken PhD MPH Epidemiologist Minnesota Department of Health
ANSWER: 01 May 2003
I grant you full permission to use these slides for educational purposes, and I wish you well with your endeavours. You would be aware that these slides have not been recently updated and we need to include a slide incorporating Canfield et al's findings published in NEJM of 17 April 2003, wherein the children with a lead level of 10 had an IQ averaging 7 points lower than those with a lead of 1. I would hasten to add that an average drop of 7, means some children will be 4 and others will be 10 points lower.
Also please note the UK study Lewendon et al (abstract below) showing that elevated blood lead above 10 (in their units 100 µg/litre) are 17 times (12/0.7) in children with behavioural or developmental disorders.
Arch Dis Child 2001;85:286-288
Methods - Blood samples were taken from 69 children with behavioural and/or
developmental problems and 136 controls (children
admitted for elective day case surgery under general anaesthetic). Blood lead estimations were carried out using graphite furnace atomic absorption
Conclusions - Children with behavioural and/or developmental problems are more likely to have significantly higher blood lead concentrations than the general childhood population. Lead, a known and more importantly, a treatable neurotoxin, would further contribute to the impairment suffered by these children. We argue that this group of children should be routinely screened for lead.
(Arch Dis Child 2001;85:286-288)
With kind regards
Dr Ben Balzer
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