Bench-to-bedside review: The evaluation of complex interventions in critical care

Table 2 Crude mortality by calendar year (1997 to 2005) for patients admitted to ICU following presentation to the emergency department in Australia and New Zealand with sepsis or septic shock

Calendar year	Percent ICU mortality (n)^a	Percent hospital mortality (n)^b
1997	27.4 (96/351)	35.6 (124/348)
1998	29.1 (87/298)	37.7 (113/301)
1999	22.6 (60/266)	30.7 (80/261)
2000	27.8 (148/534)	35.2 (184/522)
2001	23.3 (196/840)	31.6 (256/809)
2002	21.7 (219/1,011)	28.1 (280/994)
2003	19.7 (241/1,223)	25.8 (311/1,209)
2004	18.5 (260/1,403)	24.9 (350/1,403)
2005	15.6 (207/1,324)	21.2 (281/1,325)

^aFor ICU mortality, total number of patients = 7,250 (data not available for 399 patients (5.2 percent)). ^bFor hospital mortality, total number of patients = 7,172 (data not available for 477 patients (6.2 percent). ICU, intensive care unit. (Reproduced with permission from [15].)

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