The order of the authors of the paper by Götz et al on page 24 of the February 2005 issue (HM Götz et al. A prediction rule for selective screening of Chlamydia trachomatis infection. Sex Transm Infect 2005;81:24–30) were wrong. The order should have been as follows: HM Götz, JEAM van Bergen, IK Veldhuijzen, J Broer, CJPA Hoebe, EW Steyerberg, AJJ Coenen, F de Groot, MJC Verhooren, DT van Schaik, and JH Richardus.