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May 20, 2019

Data Reporting Error

JAMA Intern Med. 2019;179(7):1007. doi:10.1001/jamainternmed.2019.1547

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.

Schroeder  AR, Dehghan  M, Newman  TB, Bentley  JP, Park  KT.  Association of opioid prescriptions from dental clinicians for US adolescents and young adults with subsequent opioid use and abuse.  JAMA Intern Med. 2019;179(2):145-152. doi:10.1001/jamainternmed.2018.5419PubMedGoogle ScholarCrossref
Schroeder  AR, Newman  TB, Park  KT.  Dangers of opioid prescribing for young adults after dental procedures—reply  [published online May 20, 2019].  JAMA Intern Med. doi:10.1001/jamainternmed.2019.0213Google Scholar