the problem with the analysis is that it assumes that people are either discharged alive at 28 days or dead....creating artificially higher death rate in both groups. 2/19 = 10.5% discharged alive in SOC and 12/43 = discharged alive in Lmab. 7/19 dead in SOC and 12/43 dead in Lmab = 36.8-27.9 = 8.9 ARR/36.8 = 24.2% RRR. We the remaining 33/62 patients are likely still in the ICU at day 28.