Marieke van Son

153 PREDICTION MODELS FOR BF AFTER FOCAL SALVAGE HDR-BT SUPPLEMENTARY FILE A Additional variables used for multiple imputation via chained equations: - Primary treatment EBRT , LDR brachytherapy , or HDR brachytherapy - Pelvic lymph node dissection at primary treatment (yes/no) - Initial NCCN risk group Lowrisk(T1-T2aANDGleason≤6ANDPSA<10ng/ml),Intermediaterisk(T2b-T2cOR Gleason7ORPSA10-20ng/ml), orHigh risk (³T3aORGleason³8ORPSA>20ng/ml) - ADT use No, ≤36 months, or >36 months - PSA nadir post-primary treatment (ng/ml) - Prostate size on pre-salvage MRI (cm 3 ) - Maximum tumor diameter on pre-salvage MRI (mm) - V200% CTV (%) - PSA velocity (ng/ml/years) - Interval between primary and salvage treatment (months) - Previous salvage treatment (yes/no) - Time to nadir post-primary treatment (months) - Deceased (yes/no) 8