Table 3.

Distribution of cases and controls in the different centres and groups of centres

Region	Centre	Number of individuals by centre		Number of individuals by group of centres
		All cases	Controls	All cases	Controls
Paris area	Le Chesnay	10	15
	Meaux	45	32	55	47
	Orleans	16	7
	Le Mans	49	49	65	56
	Dreux	12	39	12	39
North-East	Evreux	25	16
	Beauvais	8	19
	Soissons	1	1
	Compiègne	24	16	58	51
	Metz	45	49	45	49
Centre	Vichy	38	2
	Bourg en Bresse	76	51	114	53
	Beaune	37	37	37	37
South-West	Tarbes	31	29	31	29
	Pau	67	54	67	54
South-East	Toulon	10	10
	Aix en Provence	58	61	68	71
	Montélimar	45	36	45	36