The authors of Chen et alReference Chen, Bilker, Hamilton, O’Donnell and Nachamkin 1 would like to issue the following corrections for tables 1 and 3 in their original published article:
Correction for Table 1: Intensive care unit (ICU) is not a sub-category of service. We determined the number of sets drawn from patients in an ICU and those that were not drawn in an ICU.
Correction for Table 3: “In the ICU” is not a sub-category of Previous report. We have Untabbed this line to indicate that “in the ICU” is its own covariate in this model.
The entire corrected tables appear below.