I have noticed an issue in one of my previously published works, which is approximately 6 months old. The issue has resulted in some minor data extraction errors and the inclusion of three studies (of approx. 20 total included) with duplicate data. These studies were part of a secondary analysis and while the error sounds substantial, there is no significant effect on the results of that analysis and certainly no significant effect on our overall findings or primary analysis.
Despite this, I feel the record should be corrected and intend to submit a corrigendum providing details and updated analysis. Is this sufficient, or should we be suggesting a retraction?