Table 2. Area under the receiver operator characteristic curve for varying combinations of Mycobacterium tuberculosis lipid suspects.

Metabolites	Area Under the Curve	95% Confidence Interval
PG (16:0_18:1)	0.82	0.68–0.97
PG (16:0_18:1), Lyso-PI (18:0)	0.94	0.88–1
PG (16:0_18:1), Lyso-PI (18:0), m/z 1321.9177*	0.97	0.93–1

* m/z 1321.9177 was predicted as acylphosphatidylinositol mannoside (Ac1PIM1) (56:1) based on accurate mass and retention time measurements, but could not be confirmed using tandem MS/MS; PG, phosphatidylglycerol; Lyso-PI, lysophosphatidylinositol