Marc Edwards Date: Fri, 17 Nov 2006 15:41:55 -0500 To: "Robert L. Scott" Subject: Proposal and signed data agreement Robert, Attached is my signed agreement. My proposal is to do a study of potential benefits resulting from a community intervention in Lansing, M. Specifically, last year Lansing distributed drinking water filters and sent out enhanced flushing instructions to mitigate levels of lead in drinking water in homes with lead pipes. | am trying to determine whether this intervention had any discernable benefit on blood lead levels in the population. To conduct this statistical test, | would like the following fields extracted from your database: 1) City of Lansing blood lead values, draw dates, and subject ID number from January 1 2001 to present. If you do not have accessible data starting in 2001, then go back as far as you can (e.g., 2002). 2) The same data for Ingham County (which | assume includes Lansing). If it is possible to get all data from within Ingham County but excluding Lansing that would be ideal. But | could presumably delete the duplicate data between set 1 and set 2 by hand if necessary. 3) The same data for the city of Detroit MI. The statistical comparison will examine 1) temporal changes in % elevated blood lead for Lansing before and after the intervention, and 2) cross comparisons in trends between Lansing (with intervention) and Detroit and Ingham County (without intervention). This is a fairly straightforward test that | suspect will confirm that no significant change arose due to the intervention in Lansing, consistent with water as a minor contributor to blood lead in Lansing. If you should have additional questions please e-mail me at this address or call me at 540 231-7236, Regards, Marc Edwards At 03:14 PM 11/17/2006, Robert L. Scott wrote: Thanks for the info. Please see attached. Just a reminder that a "proposal” is also required. It need not be particularly long or formal, but should indicate clearly the data requested, and what you intend to do with it.