Correction

The authors of a recent CMAJ article¹ have let us know that there was a minor error in their article. The odds ratios that were reported as measures for imbalance of patient characteristics in Table 1 were miscalculated. All counts, proportions and p values were correctly reported; however, some of the text describing Table 1 is also affected by this transcription error. Regarding the text, the authors have provided the following as a corrected substitute for the last 3 sentences that appear in the first paragraph of the Results section: “Patients who initiated conventional antipsychotic medications (n = 12 882) were slightly younger and more likely to be male than those who began using atypical antipsychotic medications (n = 24 359). The initiators of the conventional agents were slightly more likely than new users of the atypical agents to have cerebrovascular disease, diabetes, acute MI, other cardiovascular diseases, congestive heart failure and non-MI ischemic heart disease but less likely to have dementia, delirium, psychoses, mood disorders and other psychiatric disorders at baseline. Conventional antipsychotic medication users had lower rates of antidepressant use but higher rates of use of other psychotropic medications, total number of drugs, admissions to hospital and nursing home stays.”

A corrected version of the table is available online (at www.cmaj.ca/cgi/content/full/176/11/1613/DC1).

The authors have assured us that none of the subsequent analyses were affected by this unfortunate oversight and that the interpretation of the study findings is not changed.