RESUMO
Repeated blood pressure measurements in 127 diabetic children, obtained at intervals of 6 months, were studied. Tracking of measurements described by the correlation between repeated observations of systolic blood pressure showed highest degree of tracking between consecutive measurements (0.38-0.76), while there was a lower degree of tracking between measurements at longer time intervals, and lower degree of tracking in the observations of diastolic blood pressure than of systolic blood pressure. After adjustment for changes in height and weight, the tracking correlations are slightly smaller on the whole. The tracking correlations are generally rather small and repeated measurements of blood pressure are necessary.
Assuntos
Determinação da Pressão Arterial , Diabetes Mellitus Tipo 1/fisiopatologia , Adolescente , Estatura , Peso Corporal , Criança , Diástole , Humanos , SístoleRESUMO
Blood pressure measurements were evaluated in 151 children aged 2-19 years old with insulin-dependent diabetes mellitus (DM) of a duration of few months to 15 1/2 years. Compared with a reference group, the diabetic children had lower diastolic blood pressure (DBP) shortly after start of DM. There was no difference for the systolic blood pressure (SBP). After duration of diabetes of 5 years there were no significant differences in SBP and only significantly lower DBP in girls (median difference 5 mmHg, p less than 0.01), while the difference in boys is insignificant (median difference 2 mmHg, p = 0.32). In a model describing the intraindividual variation in blood pressure and its dependence on age, weight and height it was found that age was insignificant when weight and height were included. For DBP height was also insignificant when weight was included. For the 9 children with retinal microaneurysms the average SBP was significantly higher than expected for diabetic children of that weight and height.