I - Introductory Letter

June 2013

RESIDENT

«Address»

«City», «state» «zip_char»-«zip_4char»

Your household has been chosen by chance from among all U.S. households. We would like someone in your house to participate in an important study. The study is being done by the Centers for Disease Control and Prevention (CDC). This is a telephone study of approximately 11,000 people. The study is about health and injuries. Men and women over the age of 18 will be asked questions about their experiences. The data we are collecting are very important. They will be used to guide national policies.

We are writing you because we have found that many people like to know ahead of time that they will be called. The letter is addressed to “Resident.” We do not know your name. We do not keep address information in our files. Being part of this study is voluntary. People may refuse to answer any question or stop at any time.

The answers you give us will be kept private. Answers from interviews will always be in summary form. No one will ever know how anyone in your house answered the questions. No one will ever be able to figure out the names of people who were in this study.

A person from RTI International will call your house soon. RTI International is a non-profit research group that works for CDC. To learn more about RTI International, visit www.rti.org. The interview will take about 25 minutes. If we call at a time that isn’t good for you, please tell us. We will be happy to set up a better time. If someone in your house is eligible for the study and completes the interview, we will send them a $10 check in appreciation or make a donation to the United Way on their behalf, whichever they choose.

If you have any questions, please call Jessica Williams, Survey Specialist, at RTI International. She can be reached by calling 1-877-287-3782. If you have additional questions, you can contact CDC-Info at 1-800-CDC-INFO or [email protected]. Please mention that you are calling about the 2011 Injury and Health Survey.

Thank you for your time. It is only with the help of people like you that our research can be successful.

Sincerely,

Wendy Holmes

Associate Director for Communication Science

National Center for Injury Prevention and Control

Centers for Disease Control and Prevention