JPN has been made aware of an error in Table 2 of a paper published in the July 2015 issue.1 When responding to a request for additional data from researchers conducting a systematic review, the article’s authors re-ran analyses, which revealed some incorrect estimated marginal means and percentage differences between groups (smokers v. nonsmokers). The errors in the table impacted neither the main results of the study, nor the F values and p values reported in the table.
This has been corrected at jpn.ca
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