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October 14, 2019

Error in Coding of Suicidal Ideation Questionnaire Scale

JAMA. 2019;322(17):1718. doi:10.1001/jama.2019.16240

In the Original Investigation entitled “Switching to Another SSRI or to Venlafaxine With or Without Cognitive Behavioral Therapy for Adolescents With SSRI-Resistant Depression: the TORDIA Randomized Controlled Trial,” published in the February 27, 2008, issue of JAMA,1 the coding used for the Suicidal Ideation Questionnaire-Jr was incorrect. The scale ranges from 0 to 6; we had coded the scores on a scale from 1 to 7, which inflated the total scores. The resulting means, CIs, and cut point for clinical significance were incorrect. The data in Table 1, the Results section, and Table 4 were affected, but the errors did not affect the conclusions or interpretations of the study. A letter of explanation has been published2 and this article has been corrected online.

Brent  D, Emslie  G, Clarke  G,  et al.  Switching to another SSRI or to venlafaxine with or without cognitive behavioral therapy for adolescents with SSRI-resistant depression: the TORDIA randomized controlled trial.  JAMA. 2008;299(8):901-913. doi:10.1001/jama.299.8.901PubMedGoogle ScholarCrossref
Brent  DA, Porta  G.  Error in coding of questionnaire scale in study of depression in adolescents  [published online October 14, 2019].  JAMA. doi:10.1001/jama.2019.12855Google Scholar