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. 2019 May 4;20:190. doi: 10.1186/s12891-019-2573-5

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© The Author(s). 2019

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 2 — Changes in subchondral cysts WORMS sum scores and effusion WORMS scores during the 96-month follow-up. a Changes in subchondral cysts WORMS sum scores over 96 months. b Changes in effusion WORMS scores over 96 months. Data were given as adjusted means (scores), corrected adjusted for age, sex, race and baseline BMI and K&L grades. Error bars represented standard errors. P-values in bold refer to significant differences between groups on average over 8 years, respectively: subchondral cysts sum scores (P = 0.002) and effusion scores (P = 0.001)