TABLE 1.

Demographic characteristics of participants for LC‐MS/MS analysis.

Groups	Age (years)	Childbearing history	Previous number of spontaneous abortions
Health women	27	2‐0‐0‐2	0
	25	1‐0‐0‐1	0
	32	1‐0‐1‐1	0
	33	2‐0‐0‐2	0
Recurrent spontaneous abortion women	37	0‐0‐3‐0	3
	33	0‐0‐2‐0	2
	32	1‐0‐2‐1	2
	28	1‐0‐2‐1	2

Note: childbearing history is showing the number of full‐term birth‐premature delivery‐abortion‐surviving child.