Hemodynamics at rest and upon (pre)syncope - age quartiles.

Statistical significance of differences in continuous and categorical data between age quartiles was tested by ANOVA for multiple comparisons with Bonferroni post test and chi square test, respectively. HUT = head-up tilt.# = pModified VASIS class: I = mixed, IIa = cardioinhibitory without asystole, IIb = cardioinhibitory with asystole, III = vasodepressor.