Importance: High
Hello —I’m going to send a series of emails with materials you have asked for, as a way to organize them.
The first document attached to this email is our CLPPP updated analysis of the blood lead testing data we have for
children aged 0-16 in Flint. This is an update from what we sent to the Director’s office earlier in the year, in that we
added an additional year (2010-2011), and added data for May-August 2015 (per Geralyn’s request in an email late last
week).
Regarding this data:
e Weare using the timeframe of May —April for this chart, because the water source change in Flint happened
in April 2014. So, we started by looking at the 12 month time period from May 2014 — April 2015. Then we
went back and compared that same time frame to the 4 previous years, to see if the pattern was similar,
significantly different, etc.
e = We included all children with a Flint address, which may not exactly conform to the city boundaries.
e We only included first time blood lead levels of > 5 mcg/dL, not all subsequent tests a child may have
received.
e We included all types of blood samples — venous blood draws, capillary samples, or unknown (e.g. not
labeled as venous or capillary). Typically we would point to venous samples as the best, most reliable, but
we had many non-venous samples, so to be inclusive added those in.
Looking at the charts, you can definitely see the seasonal impact associated with lead poisoning.
We do NOT see a different pattern of results for the 2014-2015 year, right after the change in water source. That year
looks more like the data from 10-11, and 11-12.
For the full 5 years worth of data, testing rates were pretty consistent, so we don’t think that is driving the
data. However, note that testing levels for May-August 2015 appear to be lower than in the previous 5 years.
The second document | have attached is a presentation sent to us this morning by Dr. Mona Hanna-Attisha, from Hurley
Medical Center. She shared this related to her data request that she sent to our program. In scanning it, we noted that
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