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Open Access Correction

Correction: The role of cumulative physical work load in symptomatic knee osteoarthritis – a case–control study in Germany (Seidler et al. 2008).

Andreas Seidler1*, Ulrich Bolm-Audorff2, Nasreddin Abolmaali3 and Gine Elsner4

Author Affiliations

1 Institute and Policlinic for Occupational and Social Medicine, Dresden, Germany

2 Division of Occupational Health, RP Darmstadt, Wiesbaden, Germany

3 OncoRay - MI OncoRay, Dresden, Germany

4 Institute of Occupational Medicine, Johann Wolfgang Goethe-University, Frankfurt am Main, Germany

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Journal of Occupational Medicine and Toxicology 2012, 7:21  doi:10.1186/1745-6673-7-21


The electronic version of this article is the complete one and can be found online at: http://www.occup-med.com/content/7/1/21


Received:25 September 2012
Accepted:26 September 2012
Published:10 October 2012

© 2012 Seidler et al.; licensee BioMed Central Ltd.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Correction

In the original paper [1], there is a mistake in the results of the occupational group analysis. This mistake occurred when the core data set was merged with the occupational group data. According to the modified occupational group analysis (see modified Table 1), OR for chemical processers and manufacturers of plastics products are no longer significantly elevated. Having worked more than 10 years as metal worker is associated with knee osteoarthritis (OR = 2.2; 95% CI 1.1-4.4). The knee osteoarthritis risk of plasterers, insulators, glaziers, terrazzo workers, construction carpenters, roofers, and upholsters approaches statistical significance in the long-duration category (OR = 3.7; 95 CI 0.9-15.2). For woodworkers, the knee osteoarthritis risk is no longer significantly elevated. Having worked more than 10 years as painter or varnisher is associated with knee osteoarthritis (OR = 9.6; 95 % CI 1.2-77.9). Finally, we find a significantly elevated OR of 3.2 (95% CI 1.1-9.1) among subjects having worked as physically exposed service workers (storemen, nurses, refuse collectors) for more than 10 years. When subjects with non-service work as main occupation (“blue-collar workers”) are compared with “white-collar workers”, the odds ratio for knee osteoarthritis is still significantly elevated (OR = 2.0; 95% CI 1.3-2.9).

Table 1. Occupational groups (reference group: service occupation as main occupation) and symptomatic knee osteoarthritis

References

  1. Seidler A, Bolm-Audorff U, Abolmaali N, Elsner G, Knee osteoarthritis study group: The role of cumulative physical work load in symptomatic knee osteoarthritis – a case–control study in Germany.

    J Occup Med Toxicol 2008, 3:14. PubMed Abstract | BioMed Central Full Text | PubMed Central Full Text OpenURL