Response rates to a mailed survey targeting childhood cancer survivors: a comparison of conditional versus unconditional incentives.

Journal Article (Clinical Trial;Journal Article)

OBJECTIVE: Mailed surveys are widely used to collect epidemiologic and health service data. Given that nonresponse can threaten the validity of surveys, modest incentives are often used to increase response rates. A study was undertaken among childhood cancer survivors and their parents to determine if response rate to a mailed survey differed with provision of immediate versus delayed incentives. DESIGN: A self-administered survey designed to ascertain health behaviors was mailed to 397 childhood cancer survivors (and their parents if the survivor was <18 years of age). Subjects were randomized into two groups based on gender, age, race, and cancer type. One group received a 10 US dollars incentive with their blank survey (unconditional incentive), whereas the other group received the incentive upon receipt of their completed survey (conditional incentive). If children were minors, both the parent and the child received incentives. RESULTS: No significant differences in response rates were observed with respect to gender, age, race, or cancer type. However, significant differences in response rates were observed between incentive groups, with unconditional incentives yielding significantly higher response rates than conditional incentives for child survivors who were > or =18 years (64.4% versus 49.0%), as well as younger child survivors (62.5% versus 43.6%) and their parents (64.8% versus 41.5%; all P < 0.05). CONCLUSIONS: The provision of an immediate incentive generated significantly higher response rates to this mailed health survey among childhood cancer survivors and their parents. Given that survey studies are commonly conducted across various pediatric populations, these findings may help inform the design of future pediatric survey research.

Full Text

Duke Authors

Cited Authors

  • Rosoff, PM; Werner, C; Clipp, EC; Guill, AB; Bonner, M; Demark-Wahnefried, W

Published Date

  • May 2005

Published In

Volume / Issue

  • 14 / 5

Start / End Page

  • 1330 - 1332

PubMed ID

  • 15894697

International Standard Serial Number (ISSN)

  • 1055-9965

Digital Object Identifier (DOI)

  • 10.1158/1055-9965.EPI-04-0716


  • eng

Conference Location

  • United States