Although the incidence of critical illness was significantly lower in 2010 the pattern of illness among patients who were admitted to an ICU was similar to that observed in 2009 and in other reports of patients admitted to ICUs [14] [15] [16] . ARDS was present in more than 50% of patients, as previously described in ANZ [3] and worldwide [14, 15, [17] [18] [19] [20] [21] . The length of stay in ICU was unchanged [3] and similar to that reported elsewhere [14, 20] . The risk factors for admission to ICU were similar to those reported during the first wave [3, 22, 23] . In addition, the treatments administered and the mortality that occurred were similar to that observed in 2009 in ANZ as well as elsewhere [3, 13, 14, 18] .