Abstract
OBJECTIVES: To investigate response rates for online and paper versions of an identical questionnaire and the differences between respondents to each and between respondents and non-respondents among a population with type 2 diabetes.
METHODS: We mailed letters containing an invitation to complete an online questionnaire to 2045 individuals, followed by two reminders; the second included a paper version of the questionnaire.
RESULTS: In total, 1081 people responded to either version of the questionnaire, yielding a response rate of 54%. Compared to total respondents, respondents completing the online version were more likely to be male, better educated, and younger, and have had diabetes for a shorter period of time. Compared to non-respondents, respondents were more likely to be male and have a lower hemoglobin A1c level.
CONCLUSION: Web-based surveys are capable of delivering a substantial number of responses cost-effectively. However, disadvantages related to selection bias should be taken into account, and mixed-mode methods should be considered when surveying populations with type 2 diabetes.
| Original language | English |
|---|---|
| Journal | Complete Directory for People with Chronic Illness |
| Volume | 8 |
| Issue number | 1 |
| Pages (from-to) | 56-63 |
| Number of pages | 8 |
| ISSN | 1080-7659 |
| DOIs | |
| Publication status | Published - Mar 2012 |
| Externally published | Yes |
Keywords
- Adult
- Chronic Disease
- Denmark
- Diabetes Mellitus, Type 2
- Female
- Health Care Surveys
- Humans
- Internet
- Logistic Models
- Male
- Selection Bias
- Self Care
- Surveys and Questionnaires
- Journal Article
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