[Juvenile hypertension: a comparison between 2 student populations in the provinces of Ferrara and Rovigo].

The Authors have investigated the frequency of hypertension (systolic, diastolic, systo-diastolic, severe and borderline, sustained and labile) in 2 groups, respectively of 738 and 1041 school children between 11 and 14 years of age, from the provinces of Ferrara and Rovigo. The percentile graphic representations and the frequency of different types of hypertension have been compared in these two parallel studies; a correlation of statistical significance has been shown between hypertension and obesity in the Ferrara group, while a similar correlation between hypertension and familiarity for hypertension has been demonstrated in the Rovigo group.

Estimate of the daily urinary output based on creatininuria values.

The daily urinary output was calculated on the basis of creatininuria, starting from an accepted formula that evaluates ClCr, employing the subject's height and creatininemia. Results are satisfactory. The new formula estimates the daily urinary volume on the basis of the mean of the three creatininuria values of the day.