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Fig. 2 | Arthritis Research & Therapy

Fig. 2

From: Metabolomics with severity of radiographic knee osteoarthritis and early phase synovitis in middle-aged women from the Iwaki Health Promotion Project: a cross-sectional study

Fig. 2

PLS and PLS-ROG analyses of the Kellgren-Lawrence (KL) grade and metabolites. Results of the partial least squares (PLS) and PLS with rank order of groups (PLS-ROG) analyses of the metabolome data. The KL grade (0–4) was set as the response variable. A scatter plot of the first and second PLS scores for the explanatory variable (a). A bar plot (b) of the first PLS score for the response variable and a scatter plot (c) of the first and second PLS-ROG score for the explanatory variable, are shown. A bar plot (d) of the first PLS-ROG score for the response variable is shown

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