The effect of an internet option and single-sided printing format to increase the response rate to a population-based study: a randomized controlled trial

BMC Medical Research Methodology

Gary J Macfarlane¹  Gareth T Jones¹  Christine M Bond²  Elisa Flüß¹ 

[1] Epidemiology Group, University of Aberdeen, Polwarth Building, Foresterhill, Aberdeen AB25 2ZD, UK;Centre for Academic Primary Care, University of Aberdeen, Polwarth Building, Foresterhill, Aberdeen AB25 2ZD, UK

关键词: Internet;    Data collection;    Health surveys;    Postal questionnaires;    Randomized controlled trial;    Response rate;   

Others  :  1091072
DOI  :  10.1186/1471-2288-14-104

 received in 2014-05-21, accepted in 2014-08-12,  发布年份 2014

【 摘 要 】

Background

Paper questionnaires are a common means to collect self-reported information in population-based epidemiological studies. Over the past decades, the response rates to epidemiological studies have been decreasing which can affect the selection process of eligible subjects and lead to non-response bias. Hence, research into strategies to increase questionnaire response rates is crucial. The aim of this study was therefore to explore the effectiveness of single-sided questionnaires and an internet option for response in increasing response rates to a population-based study.

Methods

A 2×2 factorial experiment was embedded within a large population-based study of pain and pain management. Persons in the study sample were 4600 residents in Grampian (north of Scotland) aged 25 years and over who were randomly selected from health board records. Sampled persons were randomly assigned to either receive a single-sided or double-sided questionnaire with or without an internet option to respond. The study questionnaire was distributed via post.

Results

The overall study response rate was 36.3%. When compared to the reference group that received no intervention (response rate = 35.5%), the response rate changed only marginally when single-sided questionnaires were distributed (35.8%) or when an option to reply via the internet was provided (34.3%). A somewhat higher increase in response rates was achieved when both strategies were employed (39.6%). Overall, no significant effect on response rate was determined for each strategy or their interaction.

Conclusions

Evidence from this study suggests that neither single-sided questionnaires nor the option to reply via the internet resulted in a significant increase in response rates to population-based studies.

【 授权许可】

   
2014 Flüß et al.; licensee BioMed Central Ltd.

【 图 表 】

Figure 2.

【 参考文献 】

• [1]Silman AJ, Macfarlane GJ: Epidemiological studies. A practical Guide. 2nd edition. Cambridge: Cambridge University Press; 2005.
• [2]Galea S, Tracy M: Participation rates in epidemiologic studies. Ann Epidemiol 2007, 17(9):643-653.
• [3]Galea S: Participation rates in epidemiologic studies. Ann Epidemiol 2007, 17(9):643.
• [4]Morton LM: Reporting participation in epidemiologic studies: a survey of practice. Am J Epidemiol 2006, 163(3):197.
• [5]Edwards PJ, Roberts I, Clarke MJ, Diguiseppi C, Wentz R, Kwan I, Cooper R, Felix LM, Pratap S: Methods to increase response to postal and electronic questionnaires. Cochrane Database Syst Rev 2009., 3MR000008
• [6]Nakash R: Maximising response to postal questionnaires–a systematic review of randomised trials in health research. BMC Med Res Methodol 2006, 6(1):5. BioMed Central Full Text
• [7]Medway RL, Fulton J: When more gets you less: a meta-analysis of the effect of concurrent web options on mail survey response rates. Public Opin Q 2012, 76(4):733-746.
• [8]Brogger J, Nystad W, Cappelen I, Bakke P: No increase in response rate by adding a web response option to a postal population survey: a randomized trial. J Med Internet Res 2007, 9(5):e40.
• [9]Ziegenfuss JY, Beebe TJ, Rey E, Schleck C, Locke GR, Talley NJ: Internet option in a mail survey: More harm than good? Epidemiology 2010, 21(4):585-586.
• [10]Schneider SJ, Cantor D, Malakhoff L, Arieira C, Segel P, Nguyen K, Tancreto JG: Telephone, internet, and paper data collection modes for the Census 2000 short form. J Official Stat 2005, 21(1):89-101.
• [11]Smyth JD, Dillman DA, Christian LM, O'Neill AC: Using the internet to survey small towns and communities: limitations and possibilities in the early 21st century. Am Behav Sci 2010, 53(9):1423-1448.
• [12]Widen use of the internet. http://www.scotland.gov.uk/About/Performance/scotPerforms/indicator/internet webcite
• [13]Ware JE Jr, Sherbourne CD: The MOS 36-item short-form health survey (SF-36): I. Conceptual framework and item selection. Med Care 1992, 30(6):473-483.
• [14]Von Korff M, Dworkin SF, Le Resche L: Graded chronic pain status: an epidemiologic evaluation. Pain 1990, 40(3):279-291.
• [15]Schwartz B: The paradox of choice. New York: Harper Perennial. 2004.