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. Author manuscript; available in PMC: 2020 Aug 3.
Published in final edited form as: J Rheumatol. 2019 Sep 15;47(8):1165–1173. doi: 10.3899/jrheum.190258

Figure 2. Bland-Altman plot depicting interreader agreement of status scores of the metatarsophalangeal-joints for the two groups of early arthritis patients and for patients with clinically suspect arthralgia.

Figure 2

Bland-Altman plots of assessment of agreement of scores of the two readers. The Y-axes demonstrates the absolute difference between reader 1 minus reader 2. The X-axes denotes the average value between the two readers ((reader 1-reader 2)/2). The middle dotted line depicts the mean difference, the upper and lower dotted lines depict the ±95% limits of agreement. Different cohorts of patients are depicted; A: 215 early arthritis patients scored by reader 1 and 2, B: 226 early arthritis patients scored by reader 3 and 4, C: 82 patients with clinically suspect arthralgia scored by reader 5 and 6. From left to right the following MRI-lesions are depicted: bone marrow edema (BME), synovitis, tenosynovitis and erosions.