[The mean values and correlation between blood pressure, body weight, height, heart rate, the PQ, QT and QTc intervals, the QRS-complex and the echocardiographic dimensions of the left atrium and ventricle in 515 14-year-old students].
In five hundred and fifteen schoolchildren, the mean values of blood pressure, body weight, height, heart rate, PQ, QT, QTc-interval, QRS-duration and echocardiographic left ventricular (LV) and left atrial (LA) diastolic internal dimension as well as their correlations were measured. There were 224 girls and 291 boys of 14 years of age. Mean systolic blood pressure was 118 +/- 15 mmHg in boys, 115 +/- 10 mmHg in girls. Mean diastolic blood pressure was 74 +/- 9 mmHg in boys, 74 +/- 7 mmHg in girls. The prevalence of systolic hypertension was 3.4% in boys, 3.1% in girls. The prevalence of diastolic hypertension was 2% in boys and 4% in girls. No significant difference was observed between body weight, height, PQ, QT, QTc-interval, QRS-duration and echocardiographic LA and LV measurement in boys and girls. Mean heart rate in girls was 98 +/- 19.7 and 88 +/- 17 in boys. The difference was statistically significant (t = 6.06; P less than 0.01). A significant positive correlation was found between body weight and height and diastolic and systolic blood pressure. The body weight and height revealed a significant positive correlation to echocardiographic left ventricular and left atrial dimension. No correlation of body weight to heart rate was observed in neither boys nor girls. A significant negative correlation was found between height and heart rate (P less than 0.05) in boys, whereas no correlation between these two variables was noticed in girls.(ABSTRACT TRUNCATED AT 250 WORDS)
Catipović-Veselica
K
K
Skrinjarić
S
S
Margetić
N
N
Milasinović
G
G
Mujić
N
N
Vuković
A
A
Catipović
B
B
D000293:Adolescent; D001794:Blood Pressure; D001824:Body Constitution; D004452:Echocardiography; D004562:Electrocardiography; D005260:Female; D006325:Heart Atria / Q000033:anatomy & histology; D006339:Heart Rate; D006352:Heart Ventricles / Q000033:anatomy & histology; D006801:Humans; D008297:Male
Prosjecna vrijednost i medusobna korelacija arterijskog tlaka, tjelesne tezine, visine, srcane frekvencije, PQ, QT, QTc-intervala, QRS-kompleksa i ehokardiografske velicine lijevog atrija i ventrikula u 515 14-godisnjih ucenika.