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In the article titled “Association of Opioid Prescriptions From Dental Clinicians for US Adolescents and Young Adults With Subsequent Opioid Use and Abuse,”1 published in the February 2019 print issue of JAMA Internal Medicine, there was a data reporting error in the Limitations section. Because an immortal time bias was introduced, the dental opioid prescriptions ascertainment period was, on average, reduced by about half in about three-quarters of the participants, or by about three-eighths overall. Because 27% of all subsequent opioid prescriptions came from dental clinicians, it is estimated that the true estimate of opioid prescriptions at 90 to 365 days is approximately 1/(0.73 + 0.27 × 0.622), which is 11% higher than the initially reported 0.1%; however, the revised estimate of 0.111%, when rounded, is still 0.1%, meaning that the absolute risk difference between the exposed and unexposed cohorts remains unchanged at 6.8%. A letter to the editor describes these changes to the Limitations section in more detail.2 This article has been corrected online.
Data Reporting Error. JAMA Intern Med. 2019;179(7):1007. doi:10.1001/jamainternmed.2019.1547