Table 1. General characteristics and behavior characteristics of the study population.
| Variables | Total(N = 2021) | Non HBP(n = 1319) | HBP(n = 702) | p* | |
|---|---|---|---|---|---|
| Sex | boys | 1215(60.1%) | 724(54.9%) | 491(69.9%) | <0.001 |
| girls | 806(39.9%) | 595(45.1%) | 211(30.1%) | ||
| Age(year) | 12.9±2.7 | 12.2±2.9 | 14.3±1.4 | <0.001 | |
| BMI(kg/m2) | 23.8±4.8 | 22.0±4.0 | 27.3±4.2 | <0.001 | |
| SBP(mmHg) | 113.5±16.5 | 104.4±10.9 | 130.5±10.9 | <0.001 | |
| DBP(mmHg) | 62.2±18.0 | 54.6±15.2 | 76.7±13.3 | <0.001 | |
| MAP(mmHg) | 79.3±16.0 | 71.2±12.1 | 94.6±10.1 | <0.001 | |
| PP(mmHg) | 51.2±15.0 | 49.8±14.3 | 53.8±16.0 | <0.001 | |
| rs9810888 | TT | 730(36.1%) | 475(36%) | 255(36.4%) | 0.491 |
| GT | 971(48.1%) | 644(48.8%) | 327(46.6%) | ||
| GG | 319(15.8%) | 200(15.2%) | 119(17.0%) | ||
*p value was calculated with t-test (quantitative variables) or Chi-square test (categorical variables). SBP: systolic blood pressure. DBP: diastolic blood pressure. MAP: mean arterial pressure. PP: pulse pressure. BMI: body mass index. HBP: high blood pressure.