Tabella 4.17 - Percentage of elective THA by articular coupling and class age - P. A. Bolzano during the years 2010 - 2019 ** "Class age";"Cer-Cer";"Met-Polyet*";"Cer-Polyet*";"Met-Met";"otherComb" "<40";1,3;"-";0,6;"-";2,0 "40-49";5,3;1,9;3,6;11,1;5,4 "50-59";16,6;3,8;10,1;55,6;12,6 "60-69";30,8;17,3;24,1;22,2;30,8 "70-79";34,1;42,3;41,8;11,1;37,0 ">= 80";11,9;34,6;19,7;"-";12,2 Note: * Polyethylene and Polyethylene crosslinked are considered in one category ** the data refer to the Hip Forms wich have also a filled Hospital Discharge Form www.provincia.bz.it/salute-benessere/osservatorio-salute/ Register of Pathology - Hip Replacement Processing by the Health Observatory - 05.06.2020