Sir.—The fine points of statistical presentations are a minor concern when-ever common sense makes the author's intent clear. Nevertheless, I was amused by a table in a recent article in the AJDC by Liston et al1 in which the 12 subjects with bacterial tracheitis were cited as being "30 ± 39" months of age. While the patients may have ranged in age up to 69 months, I had to pause at the thought of unfortunate embryos undergoing treatment of this particular disease.
KATZ SK. Statistical Presentation. Am J Dis Child. 1984;138(1):101. doi:10.1001/archpedi.1984.02140390083025