THE article by Meier et al.  entitled “Hyperoxic Ventilation Reduces 6-h Mortality at the Critical Hemoglobin Concentration” was published in the January issue of the Journal (Anesthesiology 2004; 100:70–6) with errors in table 1, table 2, and figure 6. The unit for heart rate in table 1 and table 2 should have read 1/min, and the units for base excess and arterial lactate concentration in table 1, table 2, and figure 6 should have read mmol/l. The authors regret these errors.