Ceranic, Tamara (55513641900)Tamara (55513641900)CeranicLoncar-Turukalo, Tatjana (24478354200)Tatjana (24478354200)Loncar-TurukaloMilovanovic, Branislav (23474625200)Branislav (23474625200)MilovanovicJapundzic-Zigon, Nina (6506302556)Nina (6506302556)Japundzic-ZigonBajic, Dragana (56186463400)Dragana (56186463400)Bajic2025-06-122025-06-122013https://www.scopus.com/inward/record.uri?eid=2-s2.0-84894155807&partnerID=40&md5=24e22593f3190b9159f778a031b7f662https://remedy.med.bg.ac.rs/handle/123456789/8947This paper introduces a set of formulae for automatic evaluation of threshold level rTEOR for which the cross-entropy of systolic blood pressure (SBP) and pulse interval (PI) (Cross-ApEn) reaches its maximum. A mathematical method for estimating the level of consistency of entropy estimates is established as well. These two methods jointly determine a steady working point for consistent entropy estimates. © 2013 CCAL.Cross-entropy of systolic blood pressure - Pulse interval: Automatic threshold and its reliability