Table 2. Differentially-expressed miRNAs in Atypical coronary artery disease (ACAD) serum samples compared to control samples in training set and validation set^a.

	Training set			Validation set
miRNA	Control	ACAD	P valueb	Control	ACAD	P valueb
	(n = 10)	(n = 30)		(n = 34)	(n = 92)
miR-487a	184.27±23.54	400.95±41.28	0.002	251.31±23.03	460.59±37.71	0.027
miR-29b	2290.91±410.84	635.31±145.71	<0.001	1890.08±251.39	520.97±42.02	<0.001
miR-502	1229.97±232.18	3186.68±368.78	<0.001	1116.99±102.41	2772.15±412.40	0.016
miR-208	1551.19±167.21	3839.48±452.85	<0.001	2051.02±330.05	5574.02±293.53	<0.001
miR-215	86.76±24.00	385.73±37.45	<0.001	198.80±23.97	418.96±28.89	<0.001

^aThe absolute concentrations of miRNAs are presented as mean ± SEM (fM/L).

^bMann-Whitney unpaired test for rank sum.