Response rates to a mailed survey of a representative sample of cancer patients randomly drawn from the Pennsylvania Cancer Registry: a randomized trial of incentive and length effects

• Main Authors: Hornik Robert C, Fraze Taressa K, Kelly Bridget J
• Format: Article
• Language: English
• Published: BMC 2010-07-01
• Series: BMC Medical Research Methodology
• Online Access: http://www.biomedcentral.com/1471-2288/10/65

<p>Abstract</p> <p>Background</p> <p>In recent years, response rates to telephone surveys have declined. Online surveys may miss many older and poorer adults. Mailed surveys may have promise in securing higher response rates.</p> <p>Methods</p> <p>In a pilot study, 1200 breast, prostate and colon patients, randomly selected from the Pennsylvania Cancer Registry, were sent surveys in the mail. Incentive amount ($3 vs. $5) and length of the survey (10 pages vs. 16 pages) were randomly assigned.</p> <p>Results</p> <p>Overall, there was a high response rate (AAPOR RR4 = 64%). Neither the amount of the incentive, nor the length of the survey affected the response rate significantly. Colon cancer surveys were returned at a significantly lower rate (RR4 = 54%), than breast or prostate surveys (RR4 = 71%, and RR4 = 67%, respectively; p < .001 for both comparisons). There were no significant interactions among cancer type, length of survey and incentive amount in their effects on response likelihood.</p> <p>Conclusion</p> <p>Mailed surveys may provide a suitable alternative option for survey-based research with cancer patients.</p>