Erratum
After publication of this article [1], two errors were noticed in Table 1 and also in Table 3.
In Table 1 in the Radiographic evaluation section, one of the characteristics was displayed as: ≦ Larsen IV- no. (%), when it should have been: ≧ Larsen IV- no. (%).
In Table 3, one of the headings was displayed as MCA, when it should have been MAC, to refer to the Mean activity count.
The correct version of both Table 1 (Table 1 here) and Table 3 (Table 2 here) are displayed below. Both Tables have also since been updated in the original article [1].
Reference
Hashimoto T, Yoshiuchi K, Inada S, Shirakura K, Wada N, Takeuchi K, et al. Physical activity of elderly patients with rheumatoid arthritis and healthy individuals: an actigraphy study. Bio Psycho Soc Med. 2015;9:19. doi:10.1186/s13030-015-0046-0.
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The online version of the original article can be found under doi:10.1186/s13030-015-0046-0.
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Hashimoto, T., Yoshiuchi, K., Inada, S. et al. Erratum to: Physical activity of elderly patients with rheumatoid arthritis and healthy individuals: an actigraphy study. BioPsychoSocial Med 9, 20 (2015). https://doi.org/10.1186/s13030-015-0047-z
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DOI: https://doi.org/10.1186/s13030-015-0047-z