Francis 2002.

Methods	RCT comparing ximelagatran versus warfarin for the prevention of thromboembolism after total knee arthroplasty.
Data	680 patients were randomised (348/332, respectively in each treatment group).
Comparisons	Onsite assessment (local investigator blinded) versus assessment by an AC blinded to allocated treatment.
Outcomes	The outcome selected was total thromboembolism. The study's primary outcome was the incidence of deep venous thrombosis (proximal or distal) or pulmonary embolism.
Notes
Risk of bias
Item	Authors' judgement	Description
Method for selecting cases to adjudicate?	No	All suspect events adjudicated were identified by onsite assessor who was blinded to allocated treatment.