Table 3
Multivariable model comparision between the presence of any collaterals versus no collateral grades
Characteristic
OR
95% CI
PÂ value
Anterior aneurysm location
0.335
0.096 to 1.169
0.086
Sentinel headache
2.594
0.589 to 11.436
0.208
Vasospasm severity
0.368
0.158 to 0.859
0.021