Table.

Emergency consultations in which given measures of severity applied at Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland, 1993-9

Year	Measure of severity
	Length of stay ⩾6 hours			Dead or hospitalised			Ambulance or helicopter			At least one criterion fulfilled
	N	n	%	N	n	%	N	n	%	N	n	%
1993	30 818	7766	25.20	30 800	10 149	32.95	29 532	7066	23.93	30 882	14 199	46.07
1994	31 937	7717	24.16	31 929	9842	30.82	31 057	7416	23.88	31 937	14 255	44.63
1995	33 100	7812	23.60	32 931	10 153	30.83	32 262	7453	23.10	33 101	14 732	44.51
1996	32 242	7574	23.49	32 049	9798	30.57	30 056	7153	23.80	32 243	14 308	44.38
1997	34 300	7887	22.99	34 115	10 176	29.83	32 573	7891	24.23	34 301	15 326	44.68
1998	36 382	8622	23.70	36 376	10 666	29.32	34 809	8410	24.16	36 384	16 155	44.40
1999	38 242	9325	24.38	38 235	11 137	29.13	36 359	8874	24.29	38 243	16 950	44.32

N=number of valid cases for analysis. 

n=number of cases with measure of severity.