Table 3: Risk factors.

Risk factor Number of thromboses value

Gender (female)4/21 (19%)0.193
Ethnicity (Caucasian)6/53 (11.3%)1
Diabetes1/15 (6.66%)1
Metastatic disease0/3 (0%)1
Anticoagulation3/25 (12%)1
Elevated WCC1/8 (12.5%)1
BMI >302/17 (11.76%)1
Cannula LOS >1NS
Size of cannulaNS
Cubital fossa4/21 (19%)NS
More than 1 attempt1/12 (8.33%)NS
Malignancy3/20 (15%)0.659
Surgery4/40 (10%)0.643