Table 1.
Characteristics of patients’ first visit by ethnicity and sex
| European American |
African–American |
P |
||||
|---|---|---|---|---|---|---|
| Men | Women | Men0 | Women | Sex | Ethnicity | |
| Demographics | ||||||
| N | 179 | 165 | 133 | 164 | ||
| Age, years | 14.5±3.5 | 14.7 ±3.2 | 14.7 ±3.3 | 14.8±3.6 | NS | NS |
| Patients with ≥ 4 visits, % | 52.5% | 53.9% | 57.9% | 63.4% | NS | <0.05 |
| Father’s education level, years | 13.9 ±2.5 | 13.8 ±2.2 | 12.5 ±2.4 | 12.9±2.1 | NS | <0.001 |
| Family history of essential hypertension, % | 66.5% | 66.3% | 85.7% | 89.3% | NS | <0.001 |
| Anthropometric measures | ||||||
| Height, cm | 163.5 ±16.7 | 158.3 ± 10.8 | 163.1 ± 14.0 | 159.4 ± 10.7 | <0.001 | NS |
| Weight, kg | 59.9 ±20.4 | 57.2 ± 17.0 | 63.3 ±22.5 | 64.9 ±23.9 | NS | 0.001 |
| BMI, kg/m2 | 21.7±4.7 | 22.5 ±5.3 | 23.1 ±5.8 | 25.1 ± 7.9 | <0.01 | <0.001 |
| Waist, cm | 76.7 ±14.0 | 74.3 ± 12.9 | 77.4 ± 15.7 | 78.9 ± 17.5 | NS | <0.05 |
| Ambulatory BP, mmHg | ||||||
| 24h SBP | 115.8±8.1 | 111.5 ±6.6 | 117.9 ±9.0 | 113.5 ± 7.1 | <0.001 | 0.001 |
| 24h DBP | 66.5±5.0 | 66.0 ±5.0 | 67.9 ±6.0 | 67.9±5.3 | NS | <0.001 |
| Ambulatory BPV, mmHg | ||||||
| Weighted-24h SBP SD | 9.5 ±2.2 | 8.7 ± 1.5 | 9.3 ± 1.9 | 9.0± 1.8 | <0.001 | NS |
| Weighted-24h DBP SD | 9.2 ±1.8 | 8.5 ± 1.7 | 9.7 ±2.1 | 9.3 ± 1.9 | <0.001 | <0.001 |
Values are mean ±SD unless otherwise indicated. BMI, body mass index; BPV, blood pressure variability; DBP, diastolic blood pressure; SBP, systolic blood pressure; SD, standard deviation.