Table 1. Clinical/demographic information.

	RM (n=23)	Controls (n=31)	P value
Maternal age in years, median (IQI)	33.0 (29.5–35.5)	33.9 (25.1–38.5)	0.85
Race, n (%)			0.69
White	22 (95.7)	26 (83.9)
Black	0 (0)	1 (3.2)
Asian	1 (4.4)	2 (6.5)
Other/mixed	0 (0)	2 (6.5)
Gravidity, median (IQI)	4 (3–5)	1 (0–2)	<0.0001
Parity, median (IQI)	0 (0–0)	1 (0–2)	<0.0001

Abbreviations: IQI, interquartile range; RM, recurrent miscarriage.

Factors reported at the time of initial blood draw unless otherwise indicated.