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Risk of bias reporting in C ochrane systematic reviews
Author(s) -
Hopp Lisa
Publication year - 2015
Publication title -
international journal of nursing practice
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.62
H-Index - 55
eISSN - 1440-172X
pISSN - 1322-7114
DOI - 10.1111/ijn.12252
Subject(s) - selection bias , publication bias , attrition , reporting bias , systematic review , systematic risk , actuarial science , psychology , medline , medicine , meta analysis , econometrics , business , economics , political science , dentistry , pathology , law
Risk of bias is an inherent quality of primary research and therefore of systematic reviews. This column addresses the C ochrane C ollaboration's approach to assessing, risks of bias, the meaning of each, indicators of low, high and uncertain, and ways that risk of bias can be represented in a C ochrane systematic review report. The sources of risk of bias that reviewers evaluate include selection, performance, detection, attrition and reporting bias. Each poses threat to the internal validity of the primary studies and requires the reviewer to judge the level of risk as high, low or unclear. Reviewers need to address how studies of higher risk of bias might impact the pooled effect.