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Using Online Surveys for Enteric Disease Case Investigations: A Pilot Project
Alice E White1, Ingrid Hewitson2, Katherine R Sabourin3
1Department of Epidemiology, Colorado School of Public Health, Aurora, Colorado, USA.
Foodborne Pathogens and Disease
|November 20, 2020
Summary
Online surveys can supplement telephone interviews for enteric disease investigations, improving efficiency and reducing staff time. Further research is needed to enhance timeliness and data quality for better disease control.
Area of Science:
- Public Health
- Infectious Disease Epidemiology
- Health Informatics
Background:
- Routine enteric disease case interviews are vital for surveillance and outbreak detection.
- Increasing case loads and mobile phone use challenge traditional telephone interviews.
- The Colorado Integrated Food Safety Center of Excellence sought to improve investigation efficiency.
Purpose of the Study:
- To evaluate an online survey pilot program supplementing telephone interviews for enteric disease case investigations.
- To assess response rates, timeliness, data quality, and user feedback of online surveys.
- To determine the feasibility of using online surveys in public health resource constraints.
Main Methods:
- A pilot program offered laboratory-confirmed Giardia cases a choice between telephone interviews and online surveys.
- The paper-based investigation form was adapted into an online survey using Research Electronic Data Capture (REDCap).
- Data on response rates, time, data quality, demographics, and user experience were collected and analyzed.
Main Results:
- 66% of contacted Giardia cases opted for the online survey, with an 81% completion rate.
- Online surveys significantly reduced staff time (median 6 vs. 19 minutes) but doubled case completion time (median 4 vs. 2 days).
- Most users found the online survey easy to use and understand, though data quality slightly decreased.
Conclusions:
- Supplementing telephone interviews with online surveys can enhance the efficiency of enteric disease investigations.
- Online surveys are a popular and resource-efficient option for enteric disease cases.
- Further development is needed to improve the timeliness and data quality of online surveys for optimal disease control.
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