Table 1.
Baseline characteristics in the six study cohorts
| YFS (N=2,554) |
BHS (N=1,300) |
CDAH (N=695) |
Muscatine (N=721) |
Insulin (N=294) |
Kaunas (N=361) |
All (N=5,925) |
||
|---|---|---|---|---|---|---|---|---|
| Variable | Mean±SD | Mean±SD | Mean±SD | Mean±SD | Mean±SD | Mean±SD | P-value† | |
| Age (years) | 11±4 | 10±3 | 13±2 | 13±3 | 14±2 | 13±0.3 | <0.0001 | 12±4 |
| Sex (male %) | 54 | 57 | 54 | 52 | 47 | 54 | 0.44 | 54 |
| Systolic blood pressure (mmHg) | 112±11 | 100±10 | 109±13 | 115±14 | 108±9 | 114±12 | <0.0001 | 109±13 |
| Diastolic IV blood pressure (mmHg) | 75±10 | 62±8 | 78±12 | 75±9.3 | - | - | <0.0001 | 72±11 |
| Diastolic V blood pressure (mmHg) | 68±10 | 45±12 | 66±12 | 68±10 | 56±13 | 55±11 | <0.0001 | 62±15 |
| Mean arterial pressure-IV (mmHg) | 88±9 | 75±8 | 81±10 | 89±10 | - | - | <0.0001 | |
| Mean arterial pressure-V (mmHg) | 83±9 | 63±10 | 81±10 | 83±10 | 73±10 | 75±9 | <0.0001 | 76±12 |
| Pulse pressure-IV (mmHg) | 38±11 | 55±13 | 43±13 | 40±11 | - | - | 0.0003 | |
| Pulse pressure-V (mmHg) | 45±11 | 54±13 | 42±13 | 48±13 | 51±13 | 59±14 | <0.0001 | 48±13 |
| Body mass index (kg/m2) | 17.8±3.0 | 17.7±3.6 | 18.6±2.9 | 19.8±3.5 | 22.7±5.1 | 18.9±3.1 | <0.0001 | 18.4±3.6 |
*
In the Insulin- and Kaunas studies diastolic IV blood pressure was not measured.
†
Group comparisons among study cohorts