Table 2.
Characteristics of the cross-sectional cohorts of children and adults by race and sex.
| Characteristic | White | Black | P for race difference | |||
|---|---|---|---|---|---|---|
| Male | Female | Male | Female | Male | Female | |
| Children cohort | ||||||
| N | 953 | 885 | 648 | 616 | ||
| Age (year) | 11.0 (3.9) | 11. 0 (3.5) | 11.5 (3.8) | 11.4 (3.7) | 0.018 | 0.015 |
| BMI (kg/m2) | 19.2 (4.2) | 19.6 (4.9)* | 19.4 (4.7) | 19.7 (4.7) | 0.850 | 0.344 |
| Uric acid (mg/dL) | 4.5 (1.4) | 4.1 (1.1)** | 4. 1 (1.4) | 3.6 (1.0)** | <0.001 | <0.001 |
| SBP (mmHg) | 100 (11) | 100 (10) | 102 (12) | 101 (11)* | 0.026 | 0.934 |
| DBP (mmHg) | 58 (9) | 60 (10)** | 59 (10) | 60 (11) | 0.596 | 0.188 |
| Adult cohort | ||||||
| N | 1012 | 1209 | 509 | 672 | ||
| Age (year) | 36.9 (11.0) | 37.1 (10.9) | 34.3 (11.5) | 35.1 (11.8)* | <0.001 | <0.001 |
| Smokers, n (%) | 349 (34.5) | 401 (33.2) | 197 (38.7) | 161 (24.0)** | 0.105 | <0.001 |
| Drinkers, n (%) | 366 (36.2) | 251 (20.8)** | 201 (39.5) | 96 (14.3)** | 0.206 | <0.001 |
| BMI (kg/m2) | 28.6 (6.0) | 28. 0 (7.4)** | 28.2 (7.3) | 31.4 (8.7)** | 0.862 | <0.001 |
| Uric acid (mg/dL) | 6.1 (1.3) | 4.5 (1.2)** | 6.2 (1.5) | 4.6 (1.7)** | 0.307 | 0.010 |
| SBP (mmHg) | 119 (13) | 112 (12)** | 124 (17) | 118 (18)** | <0.001 | <0.001 |
| DBP (mmHg) | 79 (10) | 74 (9)** | 80 (13) | 77 (12)** | <0.001 | <0.001 |
| Hypertension, n (%) | 478 (47.2) | 367 (31.1)** | 258 (50.7) | 296 (44.1)* | 0.203 | <0.001 |
Data are presented in means (SD) or n (%).
Sex difference within racial groups: *p < 0.05, **p < 0.01.
BMI body mass index, SBP systolic blood pressure, DBP diastolic blood pressure.