Table 1.

Demographic characteristics of participants in The Sisterhood Study, overall and by family history of hypertensive disorders of pregnancy (HDP).

	Overall	Family history of HDPa
		No family history	First-degree relative with HDP	Other relative with HDP or unknown family history
N	328	131	104	93
Age (mean [sd])	30.4 (6.3)	29.6 (6.0)	30.9 (6.9)	31.0 (5.9)
Race/ethnicity (%)
Hispanic	10.1	13.7	6.7	8.6
Non-Hispanic Asian Pacific-Islander	2.1	2.3	1.9	2.2
Non-Hispanic American Indian	0.6	0.8	1.0	1.1
Non-Hispanic Black	5.2	3.8	2.9	9.7
Non-Hispanic White	74.7	74.1	84.6	64.5
Other	0.8	4.6	1.9	10.8
Missing	1.5	0.8	1.0	3.2
Education (%)
High school or less	8.2	8.4	5.8	10.8
Some college, college, vocational school	61.9	61.8	64.4	59.1
Graduate degree	28.7	28.2	28.9	29.0
Other	0.9	0.8	1.0	1.1
Missing	0.3	0.8	0.0	0.0
Relationship status (%)
Married	47.3	57.3	27.9	54.8
Unmarried but in relationship	30.8	26.7	36.5	30.1
Single	21.3	15.3	35.6	13.9
Other	0.3	0.8	0.0	1.1
Missing	0.3	0.0	0.0	0.0
Medical history (%)b
Hypertension	6.7	4.6	11.5	4.3
Hyperlipidemia	0.0	0.0	0.0	0.0
Heart disease	0.6	0.0	0.0	2.2 (1.5)
Baseline systolic blood pressure (mean [sd])c	121.5 (14.6)	122.3 (14.0)	121.4 (15.5)	120.5 (14.7)
Baseline diastolic blood pressure (mean [sd])c	76.5 (10.1)	76.4 (9.9)	77.1 (10.2)	76.1 (10.7)

^aHypertensive disorders of pregnancy is abbreviated as HDP.

^bSelf-reported use of medications for hypertension, hyperlipidemia or heart disease.

^cN = 221 overall; N = 96 for individuals without a family history of HDP; N = 67 for individuals with a first-degree relative (mother, sister or daughter) with a history of HDP; N = 58 for individuals with other and unknown family history of HDP.