The use of national administrative data to describe the spatial distribution of in-hospital mortality following stroke in France, 2008–2011

Table 3 Description of ischemic strokes

Ischemic strokes	2008		2009		2010		2011		Total		χ²	Somers’d
Ischemic strokes	n	%	n	%	n	%	n	%	n	%	p	p
All patients	75,247		76,780		79,167		78,181		309,375
Age
All patients
≤35	1271	1.7	1371	1.8	1417	1.8	1289	1.7	5348	1.7	0.0235	NS
36–55	7371	9.8	7449	9.7	7991	10.1	7771	9.9	30,582	9.9
>55	66,605	88.5	67,960	88.5	69,759	88.1	69,121	88.4	273,445	88.4
Male
≤35	557	1.5	603	1.6	656	1.7	576	1.5	2392	1.6	0.0347	0.0462
36–55	4634	12.4	4622	12.3	4992	12.8	4939	12.8	19,187	12.6
>55	32,063	86.1	32,502	86.2	33,388	85.5	33,149	85.7	131,102	85.9
Female
≤35	714	1.9	768	2.0	761	1.9	713	1.8	2956	1.9	NS	NS
36–55	2737	7.2	2827	7.2	2999	7.5	2832	7.2	11,395	7.3
>55	34,542	90.9	35,458	90.8	36,371	90.6	35,972	91.0	142,343	90.8
Sex
Male	37,254	49.5	37,727	49.1	39,036	49.3	38,664	49.4	152,681	49.4	NS	NS
Female	37,993	50.5	39,053	50.9	40,131	50.7	39,517	50.6	156,694	50.6	NS	NS
In-hospital death (in 30 days)
All patients	9025	12.0	8867	11.6	9231	11.7	8811	11.3	35,934	11.6	0.0002	<10⁻³
% age-sexe-adjusted		12.0		11.5		11.7		11.3
Male	3939	10.6	3919	10.4	3897	10.0	3785	9.8	15,540	10.2	0.0010	<10⁻³
% age-adjusted		10.6		10.4		10.0		9.8
≤35	14	2.5	19	3.2	15	2.3	5	0.9	53	2.2	0.0574	0.0088
36–55	168	3.6	154	3.3	155	3.1	151	3.1	628	3.3	NS	0.0493
>55	3757	11.7	3746	11.5	3727	11.2	3629	11.0	14,859	11.3	0.0082	0.0003
Female	5086	13.4	4948	12.7	5334	13.3	5026	12.7	20,394	13.0	0.0023	0.0380
% age-adjusted		13.4		12.7		13.3		12.7
≤35	15	2.1	5	0.7	12	1.6	7	1.0	39	1.3	NS	NS
36–55	84	3.1	83	2.9	91	3.0	76	2.7	334	2.9	NS	NS
>55	4987	14.4	4860	13.7	5231	14.4	4943	13.7	20,021	14.1	0.0031	0.0466

ISSN: 1476-072X