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Open Access Highly Accessed Research article

Clustering patients on the basis of their individual course of low back pain over a six month period

Iben Axén*, Lennart Bodin, Gunnar Bergström, Laszlo Halasz, Fredrik Lange, Peter W Lövgren, Annika Rosenbaum, Charlotte Leboeuf-Yde and Irene Jensen

BMC Musculoskeletal Disorders 2011, 12:99  doi:10.1186/1471-2474-12-99

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Error of pain measurement

Iben Ax��n   (2011-07-06 16:46)  Karolinska Institutet email

In the methods section, the pain measurement is described as a Numeric Rating Scale, which is correct. However, in the result section as well as in Table 1, pain is described as a measurement with the Visual Analogue Scale, which is incorrect. This fact has no bearing on the figures (means and SD) presented, but they should, of course, read "NRS" even in the result and in the Table. We apologize for this error.

Competing interests

I declare that I have no competing interests.

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