Table 1. Patient characteristics . SS .... | American Society of Hematology

Table 1.

Patient characteristics

	SS	SC
Patients	n = 42	n = 66
Age (years): mean ± SD	28.0 ± 5.3	27.9 ± 4.6
Gestational age at inclusion, weeks: mean ± SD	18.3 ± 6.5	19.1 ± 8.3
Twin pregnancies	2	1
Patients with previous unsuccessful pregnancy	9^*	23^†
Primigravidas	24	24
Hematocrit level at inclusion, mean ± SD	20.0 ± 4.1	27.5 ± 10.0
Hemoglobin level at inclusion, g/dL, mean ± SD	6.4 ± 1.3	8.5 ± 1.6
Fetal hemoglobin (%), mean ± SD	2.1 ± 1.0	1.1 ± 1.0

	SS	SC
Patients	n = 42	n = 66
Age (years): mean ± SD	28.0 ± 5.3	27.9 ± 4.6
Gestational age at inclusion, weeks: mean ± SD	18.3 ± 6.5	19.1 ± 8.3
Twin pregnancies	2	1
Patients with previous unsuccessful pregnancy	9^*	23^†
Primigravidas	24	24
Hematocrit level at inclusion, mean ± SD	20.0 ± 4.1	27.5 ± 10.0
Hemoglobin level at inclusion, g/dL, mean ± SD	6.4 ± 1.3	8.5 ± 1.6
Fetal hemoglobin (%), mean ± SD	2.1 ± 1.0	1.1 ± 1.0

Eight patients had experienced 1 unsuccessful previous pregnancy and 1 patient had experienced 5 previous unsuccessful pregnancies.

Number of previous unsuccessful pregnancies were 1 for 13 patients, 2 for 6 patients, and 3 or more for 4 patients.