The Relationship between Birthweight and Longitudinal Changes of Blood Pressure Is Modulated by Beta-Adrenergic Receptor Genes: The Bogalusa Heart Study
Table 1
Mean Levels and SD of Study Variables by Race and Sex.
Whites
Blacks
Males
Females
Males
Females
-value for difference
()
()
()
()
Mean
SD
Mean
SD
Mean
SD
Mean
SD
Race
Sex
Childhood
Age (year)
10.3
2.9
9.7
3.0
10.0
2.9
9.6
2.7
NS
<.05 w
Systolic BP (mm Hg)
100.8
9.4
99.4
9.1
99.8
11.8
99.0
9.6
NS
NS
Diastolic BP (mm Hg)
61.7
8.2
62.2
8.8
62.4
8.0
61.0
8.6
NS
NS
Adulthood
Age (year)
37.6
5.1
36.7
5.5
35.0
5.9
35.9
5.7
<.01 m
NS
Systolic BP (mm Hg)
117.1
10.7
109.5
10.8
122.8
15.2
119.3
17.3
<.01
<.05 w
Diastolic BP (mm Hg)
78.9
8.0
73.8
7.9
81.2
11.8
78.7
11.5
<.05
<.05
AUC Values (mm Hg)
Systolic BP total
113.1
7.2
106.9
5.5
115.0
7.6
110.7
6.8
<.05
<.01
Systolic BP trend
11.8
5.1
7.5
5.3
15.6
6.6
11.8
6.2
<.01
<.01
Diastolic BP total
72.3
5.8
69.7
4.5
72.3
6.2
70.8
5.0
<.01 f
<.05
Diastolic BP trend
10.8
3.3
8.1
4.0
10.8
3.8
9.7
4.2
<.01 f
<.01 w
At Birth
Gestational age (week)
39.8
1.6
39.6
2.0
39.2
2.3
39.5
1.8
<.05 m
NS
Birth weight (kg)
3.46
0.5
3.34
0.6
3.09
0.6
3.00
0.6
<.01
<.05 w
Birth weight (kg)†
3.44
0.5
3.33
0.5
3.10
0.5
3.00
0.5
<.01
<.05 w
BP: blood pressure; AUC: area under the curve. ; only; m: males only; only. adjusted for gestational age.
