This article has two errors in tables 3 and 4 where the quartile (Q) comparisons for the RDW and the MCHC are not written correctly. For the RDW, in the first column of Table 3 and the first column of Table 4 under the heading “Component (test vs referent Q),” the paper indicates that the three detailed comparisons are for Q2 vs Q1. The Q2 vs Q1 comparison is correct on the first line under the component subheading of “red cell distribution width,” but the second RDW comparison is really Q3 vs Q1 (i.e., the comparison on the second line that says Q2 vs Q1 now is really Q3 vs Q1) and the third comparison is actually Q4 vs Q1. Also, for the MCHC, the tables show that the comparisons are Q1 vs Q4 for all three lines of data in both Tables 3 and 4. However, the three lines under the subheading of “mean corpuscular hemoglobin concentration” actually should say Q1 vs Q4 for the first line, Q2 vs Q4 for the second line, and Q3 vs Q4 for the third.