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ABSTRACT: Objective
Electronic data collection (EDC) has become a suitable alternative to paper based data collection (PBDC) in biomedical research even in resource poor settings. During a survey in Nepal, data were collected using both systems and data entry errors compared between both methods. Collected data were checked for completeness, values outside of realistic ranges, internal logic and date variables for reasonable time frames. Variables were grouped into 5 categories and the number of discordant entries were compared between both systems, overall and per variable category.Results
Data from 52 variables collected from 358 participants were available. Discrepancies between both data sets were found in 12.6% of all entries (2352/18,616). Differences between data points were identified in 18.0% (643/3580) of continuous variables, 15.8% of time variables (113/716), 13.0% of date variables (140/1074), 12.0% of text variables (86/716), and 10.9% of categorical variables (1370/12,530). Overall 64% (1499/2352) of all discrepancies were due to data omissions, 76.6% (1148/1499) of missing entries were among categorical data. Omissions in PBDC (n?=?1002) were twice as frequent as in EDC (n?=?497, p?
SUBMITTER: Ley B
PROVIDER: S-EPMC6704619 | biostudies-literature | 2019 Aug
REPOSITORIES: biostudies-literature
Ley Benedikt B Rijal Komal Raj KR Marfurt Jutta J Adhikari Naba Raj NR Banjara Megha Raj MR Shrestha Upendra Thapa UT Thriemer Kamala K Price Ric N RN Ghimire Prakash P
BMC research notes 20190822 1
<h4>Objective</h4>Electronic data collection (EDC) has become a suitable alternative to paper based data collection (PBDC) in biomedical research even in resource poor settings. During a survey in Nepal, data were collected using both systems and data entry errors compared between both methods. Collected data were checked for completeness, values outside of realistic ranges, internal logic and date variables for reasonable time frames. Variables were grouped into 5 categories and the number of d ...[more]