Correction to: European Journal of Human Genetics (2013) 21, 1016–1019; doi:10.1038/ejhg.2012.294; published online 16 January 2013
Explanation of the error
The number of babies born with Down’s syndrome was incorrectly calculated in a previous paper.1 This affected the estimates of the numbers of people with Down’s syndrome in England and Wales in 2011 according to age. The original estimates were 5% too high, a total population of 38 879 instead of the revised corrected number of 37 090. The formulae estimating survival rates were also revised due to corrections to the data and are included below for completeness, however these changes were small and did not alter the overall population estimates. Acknowledgement of the use of the methodology developed by de Graaf et al2 should have been included in the manuscript.
Revised survival rates
1-year survival rate=92.210/(1+exp((1948.988−year)/6.041)).
1–5 years survival rate=98.698/(1+exp((1917.438−year)/19.310)).
5–10 years survival rate=99.750/(1+exp((1900.152−year)/19.326))
The amended article appears in this issue and the html and online PDF versions have also been corrected. The authors would like to apologise for their error.
References
Wu J, Morris JK : Trends in maternal age distribution and the live birth prevalence of Down’s syndrome in England and Wales: 1938–2010. Eur J Hum Genet 2013 doi:10.1038/ejhg.2012.288.
de Graaf G, Vis JC, Haveman M et al: Assessment of prevalence of persons with Down syndrome: a theory-based demographic model. J Appl Res Intellect Disabil 2011; 24: 247–262.
Additional information
The online version of the original article can be found at 10.1038/ejhg.2012.294
REVISED APPENDIX TABLE 4: Age distribution of people in 2011 with Down's syndrome in England and Wales
REVISED APPENDIX TABLE 4: Age distribution of people in 2011 with Down's syndrome in England and Wales
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Wu, J., Morris, J. Erratum: The population prevalence of Down’s syndrome in England and Wales in 2011. Eur J Hum Genet 21, 1033–1034 (2013). https://doi.org/10.1038/ejhg.2013.104
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DOI: https://doi.org/10.1038/ejhg.2013.104
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