Randomized trial showed requesting medical records with a survey produced a more representative sample than requesting separately.

Journal Article (Journal Article)

OBJECTIVES: The objective of the study was to compare the effect of two approaches to requesting medical records on survey response rates, sample representativeness, and the quality of self-reported screening. STUDY DESIGN AND SETTING: Eight hundred ninety veterans aged 50-75 years from the Minneapolis VA Medical Center were randomly assigned to (1) records request included with a colorectal cancer screening survey ("with-survey" group) or (2) request in a separate mailing following a completed survey ("after-survey" group). Analyses compared response rates, the proportion and characteristics of patients providing records, and the validity of self-reported screening, by group. RESULTS: Response rates did not vary by group (with-survey 76%; after-survey 78%, P=0.45). 54% of with-survey and 47% of after-survey participants provided complete medical records (P = 0.06). In the with-survey group, patients with complete medical records were significantly more likely to be married and to have a diagnosis of posttraumatic stress disorder; in the after-survey group, they were more likely to be aged 65-75 years, Caucasian, to have a family history of colorectal cancer, and to report being screened. Validity of self-reported screening did not vary significantly by group. CONCLUSION: The with-survey approach did not significantly reduce response rates or the quality of self-reported screening and produced a higher number and more representative sample with complete records.

Full Text

Duke Authors

Cited Authors

  • Partin, MR; Burgess, DJ; Halek, K; Grill, J; Vernon, SW; Fisher, DA; Griffin, JM; Murdoch, M

Published Date

  • October 2008

Published In

Volume / Issue

  • 61 / 10

Start / End Page

  • 1028 - 1035

PubMed ID

  • 18550333

Pubmed Central ID

  • 18550333

Electronic International Standard Serial Number (EISSN)

  • 1878-5921

Digital Object Identifier (DOI)

  • 10.1016/j.jclinepi.2007.11.015


  • eng

Conference Location

  • United States