[Uroflow index--a formula for simplifying examination and the comparison of uroflow measurement curves in practice].

It has long been known that in uroflowmetry the maximum and mean flow depend on the volume. A report is given on the development of a formula by means of which all parameters relevant for the evaluation of a uroflow, with the exception of flow increase time, are reduced to a single figure, the uroflow index, which also, by virtue of volume correction, allows two flow graphs with different volumes of miction to be immediately compared and makes a classification into normal, borderline (i.e. requiring observation) and clearly pathological cases.