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  • Publisher's Erratum
  • Open Access

Erratum to: Statistical methodology for age-adjustment of the GH-2000 score detecting growth hormone misuse

  • 1Email author,
  • 2,
  • 2, 3,
  • 4,
  • 2 and
  • 2
BMC Medical Research MethodologyBMC series – open, inclusive and trusted201616:164

  • Published:

The original article was published in BMC Medical Research Methodology 2016 16:147


After publication of the original article [1], it came to the authors’ attention that there was an error affecting equation (7). A correction to this equation was submitted by the authors during proofing, but was not implemented correctly by the Production team.

The correct version of equation (7) is as follows:
$$ \begin{array}{l}\widehat{\beta^{*}}=\frac{{\displaystyle \sum_{i=1}^n\left({Y}_i^{*}-\overline{Y*}\right)\left({x}_i-\overline{x}\right)}}{{\displaystyle \sum_{i=1}^n{\left({x}_i-\overline{x}\right)}^2}}=\frac{{\displaystyle \sum_{i=1}^n\left({Y}_i-\widehat{\beta}{x}_i-\left(\overline{Y}-\widehat{\beta}\overline{x}\right)\right)}\left({x}_i-\overline{x}\right)}{{\displaystyle \sum_{i=1}^n{\left({x}_i-\overline{x}\right)}^2}}\\ {}\kern2.5em =\frac{{\displaystyle \sum_{i=1}^n\Big({Y}_i-\overline{Y}}\left)\left({x}_i-\overline{x}\right)-\widehat{\beta}{\displaystyle \sum_{i=1}^n\Big({x}_i-\overline{x}}\right){}^2}{{\displaystyle \sum_{i=1}^n{\left({x}_i-\overline{x}\right)}^2}}\\ {}\kern2.5em =\frac{{\displaystyle \sum_{i=1}^n\Big({Y}_i-}\overline{Y}\Big)\left({x}_i-\overline{x}\right)}{{\displaystyle \sum_{i=1}^n{\left({x}_i-\overline{x}\right)}^2}}-\widehat{\beta}\frac{{\displaystyle \sum_{i=1}^n\Big(}{x}_i-\overline{x}\Big){}^2}{{\displaystyle \sum_{i=1}^n{\left({x}_i-\overline{x}\right)}^2}}=0.\end{array} $$

Equation (7) has also been updated in the original article in order to rectify this publisher’s error.



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Authors’ Affiliations

Southampton Statistical Sciences Research Institute, University of Southampton, Southampton, SO17 1BJ, UK
Human Development and Health Academic Unit, University of Southampton Faculty of Medicine, IDS Building (MP887), Southampton General Hospital, Tremona Road, Southampton, SO16 6YD, UK
Nuffield Division of Clinical Laboratory Sciences, UK Department of Clinical Biochemistry Level 4, University of Oxford, John Radcliffe Hospital Headley Way, Headington, Oxford, OX3 9DU, UK
Department of Pharmacy and Forensic Science, Drug Control Centre, King’s College London, 150 Stamford Street, London, SE1 9NH, UK


  1. Böhning D, Böhning W, Guha N, Cowan DA, Sönksen PH, Holt RI. Statistical methodology for age-adjustment of the GH-2000 score detecting growth hormone misuse. BMC Med Res Methodol. 2016;16:147. doi:10.1186/s12874-016-0246-8.View ArticlePubMedPubMed CentralGoogle Scholar


© The Author(s). 2016