Supplementary Appendix S2. PCC-PAPER anchors
Item Dimension Score anchor (0-2)
P1 Clinical relevance 2 definitive patient-important outcome1 relevant surrogate plus definitive data0 intermediate only
P2 Precision and magnitude 2 precise and clinically meaningful1 moderate0 wide uncertainty/no useful effect
P3 Internal validity and robustness 2 low bias and stable1 limitations0 major bias/instability
P4 Information size 2 adequately powered/event-rich1 moderate0 sparse/underpowered
P5 Replication and applicability 2 independent confirmation/high applicability1 limited0 isolated/poor applicability