Table 3.

Mean Gestational Age at Loss and Ultrasound Characteristics by Race of “Right From the Start” Participants Who Experienced Miscarriage, 2000–2009

Ultrasound Characteristics	RFTS Study Participants
	Whites (n = 406)			Blacks (n = 131)
	Gestational Age at Loss, Weeks (Mean (SD))	No. of Losses	% of Loss	Gestational Age at Loss, Weeks (Mean (SD))	No. of Losses	% of Loss
Loss before ultrasound examination		122			31
Fetal pole
With normal heart rate	11.73 (3.04)	101	35.6	14.88 (3.95)	36	36.0
With abnormal or no heart rate	10.35 (1.60)	74	26.1	11.24 (1.85)	28	28.0
Anembryonic gestationa	9.51 (2.40)	109	38.4	10.53 (3.13)	36	36.0

Abbreviations: RFTS, “Right from the Start”; SD, standard deviation.

^a Anembryonic gestation includes only gestational sac present (n = 44 (whites), n = 12 (blacks)); gestational and yolk sac present (n = 49 (whites), n = 13 (blacks)); and empty uterus (n = 16 (whites), n = 11 (blacks)).