Facilitating Cross National Comparisons of Indicators for Patient Safety at the Health System Level in the OECD Countries

Case in calculation data base Marker for ADx available in data base?Compare PDx to ADx ADx = PDx?yes yes no Marker for post admission Dx available in data base?Post admission diagnosis = PDx?Set Post admission diagnosis as SDx Set Dx related to admission / first procedure as PDx Continue calculation Keep PDx Set ADx as new PDx Set former PDx as SDx yes yes no no ADx Admission Diagnosis SDx Secondary Diagnosis PDx Principal Diagnosis Algorithms for countries using principal diagnosis definition 2 ("condition demanding the most resources").Repeat algorithm for each case.Case in calculation data base no Continue calculation Compare PDx to each post admission Dx Admission Diagnoses