Table 2.

Significantly changed lipid compounds that decreased or increased between PCOS and control (plasma samples). Discovery determined using the two-stage linear step-up procedure of Benjamini, Krieger and Yekutieli, with Q = 5%. Each row was analysed individually, without assuming a consistent SD. * Metabolite identification confidence score as described elsewhere [12].

Name	Identity Confidence Score *	m/z	Retention Time (min)	Increase (↑) or Decrease (↓)	Fold Change	t-Test (p)	Q-Value
Heptadecanoic acid (17:1)	2	267.232	1.70	↓	0.59	5.27 × 10−6	7.84 × 10−3
Palmitoleic acid (16:1)	2	253.217	1.52	↓	0.57	5.60 × 10−6	7.84 × 10−3
Pentadecenoic acid (15:1)	2	239.201	1.35	↓	0.65	4.76 × 10−5	2.16 × 10−2
Palmitic acid (16:0)	2	255.233	1.81	↓	0.74	6.30 × 10−5	7.84 × 10−3
Heptadecanoic acid (17:0)	2	269.248	2.03	↓	0.78	1.07 × 10−4	3.21 × 10−2
Myristic acid (14:0)	2	227.201	1.40	↓	0.65	1.41 × 10−4	3.95 × 10−2
Docosatrienoic acid (22:3)	2	333.279	2.11	↓	0.64	1.71 × 10−4	4.45 × 10−2
Eicosadienoic acid (20:2)	2	307.264	1.99	↓	0.70	3.79 × 10−3	2.16 × 10−2
Steroid (dihydrotestosterone or isomer) sulphate	4	369.172	0.45	↑	2.79	1.00 ×10−5	9.64 × 10−3
Hexacosahexaenoic acid (26:6)	2	383.297	2.05	↑	1.23	5.13 × 10−5	2.23 × 10−2
Steroid (testosterone or isomer) sulphate	4	367.158	0.43	↑	2.23	5.20 × 10−5	2.23 × 10−2