Table 3  Comparison of studied follicular fluid factors according to clinical pregnancy results.

Parameters	Pregnant (n = 13)	Non-pregnant (n = 77)	p-value
ADM2: adrenomedullin 2; VEGF: vascular endothelial growth factor; sFlt-1: soluble Fms-like tyrosine kinase-1; sVEGFR-2: soluble VEGF receptor 2
ADM2 (pg/ml)	43.85 ± 5.46	65.08 ± 71.6	0.399
VEGF (pg/ml)	1419.4 ± 666.38	1256.6 ± 565.23	0.745
sVEGFR-2 (ng/ml)	4.01 ± 1.89	4.21 ± 1.83	0.470
VEGF/sFlt-1	2.12 ± 1.25	3.05 ± 1.94	0.09
VEGF/sVEGFR-2	329.87 ± 193.93	276.01 ± 116.27	0.401