Table 4.

Raw data by risk category overall and for the most recent era

Risk category	Entire study period (1982–2007)					Time period 5 (2003–2007)
	Admissions n (%)		Deaths n (%)		Mortality (%)	Admissions n (%)		Deaths n (%)		Mortality (%)
1	17,935	(21.1)	99	(2.2)	0.6	3,179	(15.0)	14	(2.9)	0.5
2	28,389	(33.4)	555	(12.6)	2.0	7,985	(37.7)	56	(11.6)	0.7
3	29,434	(34.6)	1,892	(42.9)	6.4	7,406	(35.0)	197	(40.6)	2.7
4	6,563	(7.7)	951	(21.5)	14.5	1,906	(9.0)	115	(23.7)	6.0
5&6	2,702	(3.2)	918	(20.8)	34.0	688	(3.3)	103	(21.2)	15.0
Total	85,023	(100)	4,415	(100)	5.2	21,164	(100)	485	(100)	2.3