Long Term Health Survey_Supporting Statement_Section B

Peace Corps

Office of Health Services

Long Term Health Outcomes Survey

OMB Control Number 0420-XXXX

Supporting Statement

Section B. Collection of Information Employing Statistical Methods

1. Describe (including a numerical estimate) the potential respondent universe and any sampling or other respondent selection methods to be used. Data on the number of entities (e.g., establishments, State and local government units, households, or persons) in the universe covered by the collection and in the corresponding sample are to be provided in tabular form for the universe as a whole and for each of the strata in the proposed sample. Indicate expected response rates for the collection as a whole. If the collection had been conducted previously, include the actual response rate achieved during the last collection.

All Returned Peace Corps Volunteers who served between 1995-2014 who are in the Office of the Third Goal and Returned Volunteer Services database will receive an email invitation to complete the survey. These volunteers may nominate other Volunteers who may not be on the database (respondent-driven sampling). Currently there are over 65,016 Peace Corps Volunteers in the database for these dates, with 44,787 emails. We are estimating a response rate of 25% which will be a total of 11,196 Returned Peace Corps Volunteers.

2. Describe the procedures for the collection of information including:

* Statistical methodology for stratification and sample selection,

* Estimation procedure,

* Degree of accuracy needed for the purpose described in the justification,

* Unusual problems requiring specialized sampling procedures, and

* Any use of periodic (less frequent than annual) data collection cycles to reduce burden.

We are planning to select all Returned Peace Corps Volunteers who served between 1995-2014 who have emails registered with the Office of the Third Goal and Returned Volunteer Services and who have been nominated by a colleague through respondent-driven sampling.

3. Describe methods to maximize response rates and to deal with issues of non- response. The accuracy and reliability of information collected must be shown to be adequate for intended uses. For collections based on sampling, a special justification must be provided for any collection that will not yield "reliable" data that can be generalized to the universe studied.

To maximize response rate, a reminder email containing the link to the survey will be sent two and four weeks after the initial email to all invitees. In addition to receiving the email invitation, the survey will be advertised on select Returned Peace Corps Volunteer websites. There are over 130 Returned Peace Corps Volunteer websites across the world.

4. Describe any tests of procedures or methods to be undertaken. Testing is encouraged as an effective means of refining collections of information to minimize burden and improve utility. Tests must be approved if they call for

answers to identical questions from 10 or more respondents. A proposed test or set of test may be submitted for approval separately or in combination with the main collection of information.

No tests of procedures or methods will be undertaken.

5. Provide the name and telephone number of individuals consulted on statistical aspects of the design and the name of the agency unit, contractor(s), grantee(s), or other person(s) who will actually collect and/or analyze the information for the agency.

Names and phone numbers of people analyzing the data:

1. Jodi Vanden Eng., MS Biostatistician, Division of Parasitic Diseases and Malaria, Centers for Disease Control and Prevention, U.S. Department of Health & Human Services, 404-718-4721.

2. Rennie Ferguson, MPH, Office of Health Services, U.S. Peace Corps, 202-692-2177.

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