The errors Dr Baker points out are real but they are minor and in no way affect our results or conclusions.
We apologize for committing the 2 typographical errors that Dr Baker points out. The first is the misspelling of a citation (Harnack et al, reference 4).1 The second is the discrepancy between statements in the text on page 1151 and in Table 4. The correct numbers are those presented in the Table.
Ballew C, Kuester S, Gillespie C. The Necessity for Statistical Precision—Reply. Arch Pediatr Adolesc Med. 2001;155(5):619-620. doi:10.1001/archpedi.155.5.618