Post-Katrina New Orleans Adjustment to Control Totals for the National Immunization Survey

• Activity Number: 341
• Type: Contributed
• Date/Time: Tuesday, July 31, 2007 : 2:00 PM to 3:50 PM
• Sponsor: Section on Survey Research Methods
• Author(s): Steven Pedlow*+ and Zhen Zhao
• Companies: NORC at the University of Chicago and Centers for Disease Control and Prevention
• Keywords: Migration ; Hurricane Katrina ; Post-Stratification Totals

Abstract

The National Immunization Survey (NIS), sponsored by the Centers for Disease Control and Prevention, is an ongoing telephone survey that measures vaccination coverage for children 19--35 months old. Interviewing resumed after Hurricane Katrina, but the population in Orleans Parish and the surrounding areas remains reduced. NIS weighting control totals are built from birth records that predate the Hurricane. As part of post-stratification, we created a special Orleans Parish out-migration step. This paper describes our use of special population estimates by the Census Bureau and the State of Louisiana's 2006 Louisiana Health and Population Survey, as well as data on Katrina aid applicants from the Federal Emergency Management Agency. With these data, we were able to realistically move the Orleans Parish population affected by Hurricane Katrina to their resettlement areas.