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. 2016 Dec 13;18:295. doi: 10.1186/s13075-016-1186-8

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© The Author(s). 2016

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. 1 — Latent classes of baseline inflammation and pain-related variables. Left y-axis = variables standardised from 0 to 1 to allow comparison between different indices. Increasing severity is reflected by increasing scores. Right y-axis = reference points for normal or low activity scores for different variables. BP Short Form Health Survey bodily pain score, BSRBR British Society for Rheumatology Biologics Registers, ERAN Early Rheumatoid Arthritis Network, VT Short Form Health Survey vitality score, MH Short Form Health Survey mental health score, ESR Erythrocyte sedimentation rate, SF-36 36-item Short Form Health Survey, SJC Swollen joint count, TJC Tender joint count, TNF Tumour necrosis factor VAS Visual analogue scale. Names of classes are descriptive