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Fig. 1 | BMC Cardiovascular Disorders

Fig. 1

From: Serum metabolism characteristics of patients with myocardial injury after noncardiac surgery explored by the untargeted metabolomics approach

Fig. 1

The metabolomic profile in MINS and non-MINS patients. (A) PCA in positive mode; (B) PCA in negative mode. Samples from MINS and non-MINS patients are shown in black and red, respectively. (C) PLS-DA in positive mode (R2Y: 0.94); (D) PLS-DA in negative mode (R2Y:0.86). Samples from MINS and non-MINS patients are shown in red and blue, respectively. The X and Y axes represent the individuals’ contributions to the first two principal components (PC1 and PC2). (E) Statistical validation of PLS-DA model in positive mode; (F) Statistical validation of PLS-DA model in negative mode. The intercepts of R2 = (0.0, 0.90) and Q2 = (0.0, − 0.52), R2 = (0.0, 0.84) and Q2 = (0.0, − 0.47), indicate that the PLS-DA model is not overfitted. MINS, myocardial injury after noncardiac surgery; PCA, principal component analysis; PLS-DA, partial least squares discrimination analysis

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BMC Cardiovascular Disorders

ISSN: 1471-2261

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