Additional calculation revisions identified during reanalysis.During the verification of the calculations, two additional issues requiring correction were identified.When calculating the tracheal Z score, gestational age was entered as completed weeks only, rather than including fractional weeks (e.g., 35+3/7 weeks instead of 35 weeks).In calculating the predicted standard deviation 2 was used instead of (/2) defined in the formula.Following correction, all NTD Z-scores and related statistical analyses were recalculated.These revisions affected the analyses involving NTD Z-scores, including group comparisons, ROC analysis, correlation analysis, and ICC assessment.However, these corrections did not influence the statistical significance of the results or the overall conclusions of the study.A comprehensive summary of all corrections is provided in the Correction Table below, including updates to:Correction to: Pediatric Cardiology h t t p s : / / d o i .o r g / 1 0 . 1 0 0 7 / s 0 0 2 4 6 -0 2 5 -0 4 1 5 3 -4 .The authors wish to correct the following errors in the above-mentioned article.The authors apologize for these errors and provide the corrected information below:1. Correction of the regression formula description An error was identified in the written description of the regression equation for the predicted normal tracheal diameter (NTD).Importantly, this transcription error was limited to the written description in the manuscript, and did not affect the statistical analyses as all analyses were conducted using the correct regression formula.As such, the calculated results and study conclusions remain unchanged.Further, this issue was independent of the additional computational revisions described below.
Ikegawa et al. (Wed,) studied this question.