For the WFNS, OR ranged from 2.15 (95% CI, 0.50 - 9.20) to 37.44 (95% CI, 9.53 - 163.25) and increased less evenly than the H&H, with OR ranging from 0.85 (95% CI, 0.23 - 3.19) to 30.11 (95% CI, 8.66 - 104.75).