Table 1 Basic characteristics of 6–17 years old schoolchildren with different high blood pressure subtype
Variable | Total | Boys(n = 32,064) | Girls(n = 30,104) | P |
|---|---|---|---|---|
Mean(s.d.) | Mean(s.d.) | Mean(s.d.) | ||
Age | 10.8(3.3) | 10.7(3.3) | 10.9(3.3) | <0.001 |
BMI | 18.6(3.8) | 18.8(3.9) | 18.2(3.5) | <0.001 |
SBP | 104.3(12.2) | 105.7(12.5) | 102.8(11.6) | <0.001 |
DBP | 66.3(8.8) | 66.8(9.0) | 65.7(8.6) | <0.001 |
HBP | 5933(9.5%) | 3262(10.2%) | 2671(8.9%) | <0.001 |
Normal BPa | 56,235(90.5%) | 28,802(89.8%) | 27,433(91.1%) | |
HBP subtype | ||||
 ISHBPa | 2263(3.6%) | 1404(4.4%) | 859(2.9%) | <0.001 |
 IDHBPa | 1992(3.2%) | 1001(3.1%) | 991(3.3%) | |
 SDHBPa | 1678(2.7%) | 857(2.7%) | 821(2.7%) | |
nutritional status | ||||
 Underweighta | 4456(7.2%) | 2528(7.9%) | 1928(6.4%) | <0.001 |
 Normal weighta | 43,121(69.4%) | 20,365(63.5%) | 22,756(75.6%) | |
 Overweighta | 7888(12.7%) | 4823(15.0%) | 3065(10.2%) | |
 Obesitya | 6703(10.8%) | 4348(13.6%) | 2355(7.8%) | |