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Free Content Direct data capture using hand-held computers in rural Burkina Faso: experiences, benefits and lessons learnt

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Summary Objectives 

To assess our experiences of using hand-held computers (personal digital assistants, PDAs) for direct data capture in a large community-based geo-referenced survey in rural Burkina Faso, highlighting benefits and lessons learnt from their use. Methods 

A population-based geo-referenced survey of over 500 000 people was undertaken using PDAs with in-built GPS receivers and the resulting database analysed in terms of successful completion, error rates and interview durations. Results 

Surveys were successfully completed for 84 861 households (98.3%) by 127 interviewers. The data input error rate was assessed at 0.24%, with more than half of the errors being made by less than 10% of the interviewers. Faster interviewers were not less accurate. Time-stamped and geo-referenced data allowed reconstruction of particular interviewer-day activities. Conclusions 

Although the survey setting was challenging, the feasibility of using direct data capture on a large scale was well established. We learnt that, with more experience, we could have made better use of real-time entry and quality control checking procedures. The work involved in designing and setting up a complex survey on PDAs prior to data collection should not be underestimated.
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Keywords: GPS; community survey; data capture; epidemiology; geo-referencing; hand-held computers; personal digital assistants

Document Type: Research Article

Affiliations: 1:  Immpact, University of Aberdeen, Aberdeen, UK 2:  Immpact, Centre Muraz, Bobo-Dioulasso, Burkina Faso

Publication date: 2008-07-01

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