JSM 2004 - Toronto

Abstract #300932

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Activity Number: 342
Type: Contributed
Date/Time: Wednesday, August 11, 2004 : 10:30 AM to 12:20 PM
Sponsor: Section on Survey Research Methods
Abstract - #300932
Title: Evaluation of Response Rates Over Time in a Mixed-mode Survey
Author(s): Holly B. Shulman*+ and Brenda Colley Gilbert and Amy Lansky
Companies: Centers for Disease Control and Prevention and Centers for Disease Control and Prevention and Centers for Disease Control and Prevention
Address: 205 College Ave., Swarthmore, PA, 19081-1408,
Keywords: response rates ; survey ; mixed-mode
Abstract:

Survey researchers are finding it increasingly difficult to maintain high response rates on surveys, as the public is becoming more resistant to their efforts. Many telephone surveys have seen response rates decline in recent years. Mail surveys, if properly designed, have been more successful at maintaining adequate response rates. We examine response data over time from the Pregnancy Risk Assessment Monitoring System (PRAMS), a state, population-based surveillance system of women who have recently delivered a live-born infant. PRAMS identifies eligible women from birth certificates and contacts them two to six months after delivery. The PRAMS methodology, which is consistent across participating states, consists of a mail survey with telephone follow-up for nonresponders. Response rate data from 1996 and 2001 are examined to determine response rates, contact rates, cooperation rates, and refusal rates. Logistic regression is used to examine the relationship between maternal and infant characteristics available from the birth certificate and the likelihood of response for the 23 states participating during 2001.

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