Maternal Plasma Metabolomic Profiles in Spontaneous Preterm Birth: Preliminary Results

Table 3

Number of significant features (total and identified) and SVM classification accuracy-obtained with the significant (after applying value adjustment procedure) as predictors verified with the leave-one-out cross-validation technique.

	Number of significant features				Quality of classification
	ESI+ total	ESI+ identified	ESI− total	ESI− identified	SVM ESI+	SVM ESI−
Group I versus group II	22	6	4	2	78%	69%
Group Ia versus group II	32	8	26	11	84%	83%
Group I versus group III	22	8	57	9	88%	90%
Group II versus group III	66	22	71	24	88%	85%
All	74	26	94	29	—	—