Frequency of data extraction errors and methods to increase data extraction quality: a methodological review.

ABSTRACT:

Background

Our objective was to assess the frequency of data extraction errors and its potential impact on results in systematic reviews. Furthermore, we evaluated the effect of different extraction methods, reviewer characteristics and reviewer training on error rates and results.

Methods

We performed a systematic review of methodological literature in PubMed, Cochrane methodological registry, and by manual searches (12/2016). Studies were selected by two reviewers independently. Data were extracted in standardized tables by one reviewer and verified by a second.

Results

The analysis included six studies; four studies on extraction error frequency, one study comparing different reviewer extraction methods and two studies comparing different reviewer characteristics.

SUBMITTER: Mathes T 

PROVIDER: S-EPMC5704562 | biostudies-literature | 2017 Nov

REPOSITORIES: biostudies-literature