Group	Parameters
Patient‐related	Age Gender BMI HCT‐CI Charlson CI Previous thrombotic history Number of thromboembolic events Thrombotic complications on initial therapy of MM
Disease‐related	M protein type Stage D‐S, ISS, R‐ISS Bone disease Kidney insufficiency before ASCT
Catheter‐related	Location Time from placement to removal
Treatment‐related	Conditioning type (myeloablative/non‐myeloablative) Complications: Infectious/Non‐infectious CVC infection CVS complications/GI complications