Maternal Plasma Metabolomic Profiles in Spontaneous Preterm Birth: Preliminary Results

Figure 2

OPLSDA models compared with the studied groups (obtained for 374 selected variables from positive polarity mode). (a) OPLSDA for group Ia versus group II, correctly classified. (b) OPLSDA for group I versus group II. (c) OPLSDA for group I versus group III. (d) OPLSDA for group II versus group III. R² and Q² parameters are given for the first component for each model. CC: percentage of correctly classified samples according to classification table. Investigated groups are marked as follows: group I—red dots; group Ia—red circles; group II—blue triangles; group III—black squares.

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