Sue,
I note that EMS is not a medical research establishment but is a market research company.
You have not made this information clear in your introduction, so before anyone further provides you with personal details that may be used solely for marketing purposes, can you please verify why you wish to compile a list of people with diabetes.
Until further clarification is received I would advise members not to provide information to this company (unless you like being bombarded with unsolicited mail, email, phonecalls, etc).