The epidemiology of severe sepsis in England, Wales and Northern Ireland, 1996 to 2004: secondary analysis of a high quality clinical database, the ICNARC Case Mix Programme Database

Table 1 Admissions with severe sepsis during the first 24 hours following admission to critical care

	Number of critical care units	Unit-years of data	Total number of admissions	Admissions with severe sepsis (%)
1996	61	39.6	14,696	3,458 (23.5)
1997	76	67.4	25,486	6,007 (23.6)
1998	94	85.1	34,033	8,638 (25.4)
1999	103	94.5	38,567	10,257 (26.6)
2000	111	98.6	39,437	10,923 (27.7)
2001	129	110.4	47,688	13,325 (27.9)
2002	148	134.2	59,388	16,285 (27.4)
2003	151	129.3	59,527	16,594 (27.9)
2004	100	54.7	24,905	7,145 (28.7)
Total^a>	172^b	814.0	343,860	92,672 (27.0)

^aTotal includes 55 admissions from 1995 and 78 admissions from 2005; ^b172 critical care units contributed data at any time during the study.

ISSN: 1364-8535