RE: Summary Data
- From
- Mona Hanna-Attisha
Cden,
A few questians/camments ag | begin to process this infa:
OF course, because the half life of blood lead is only 20-20 days, blacd lead testing done from october on does not
accurately reflect the exposure that occurrad fram the onset of water switch. Very few people based an the mediafheaith
advisories were drinking the water and many many more peaple were being tested as in the past - thus a smalier
percentage.
50 Flint children were determined by their zip code? Was this data geococed? Neither zip code, ner city of Flint in the
addrass, correlates with flint water.
Any chance you also looked more in depth at the two higher risk zip codes (48503 and 48504}?
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000770
in terras of the first bullet, “peopie only counted once whe had multiple lead levels" - did you use “first tirne lead" level of 3
child or “highest” lead" done an a child? As before, just because a child may have a nan-elevated first lead does not mean
that subsecuent lead levels will be non-elevated
5. Lastly, 20 nd 2015 (3 is concerning and it's unfortunate thet the press release statement regarding seasanal variation
did not mention the seasonality of fead in water which is well documented and which mest likely led to those higher peaks.
"Seasonal variation is the result of a number of factors including increased exposure to lead in dust and soil in the summer
months.”
fii sure (H have more questions later. thanks!
Mona Hanna-Attisha MD MPH
Directar, Padiatric Residency Program
Hurkey Chifdren's Hospital at Hurley Medical Canter
Assistant Professor, Department of Pediatrics and Human Development
Michigan State University College of Human Medicine
rohan rieyin if
TRESDAY, DECEMBER 2, 2035
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