From: Mortality among head trauma patients taking preinjury antithrombotic agents: a retrospective cohort analysis from a Level 1 trauma centre
Dead
Alive
Warf
No warf
OR (95 %)
OR MH (95 %)
Breslow-Day Inter-action
Crude
15
41
38
240
2.311 (1.167, 4.576)
T-RTS
X
0.002
12
8
4
24
161
13.417 (3.751, 47.992)
11 or less
7
37
13
79
1.150 (0.424, 3.120)