Table 1. Number of invasive meningococcal disease cases and number and incidence of laboratory-confirmed MenW cases, by country, 13 EMGM-member countries, 2013–2017 (n = 10,385 cases).

Country	Number of reported IMD cases					MenW cases					MenW incidence					AAPC	p value
	2013	2014	2015	2016	2017	2013	2014	2015	2016	2017	2013	2014	2015	2016	2017
Englanda	726	628	797	804	704	76	117	201	224	195	0.14	0.22	0.37	0.41	0.35	23%	< 0.001
Germanyb	345	278	287	339	281	10	10	10	26	26	0.01	0.01	0.01	0.03	0.03	35%	< 0.001
Spain	262	146	210	250c	261c	6	6	6	21	28	0.01	0.01	0.01	0.05	0.06	62%	< 0.001
Polanda	235	180	198	157	204	3	4	7	7	9	< 0.01	0.01	0.02	0.02	0.02	29%	0.056
Italy	172	165	189	228	175	5	8	7	13	9	< 0.01	0.01	0.01	0.02	0.01	17%	0.165
Netherlandsa	117	77	85	153	198	7	1	9	50	80	0.04	< 0.01	0.05	0.29	0.47	133%	< 0.001
Sweden	74	49	53	62	49	3	2	11	18	17	0.03	0.02	0.11	0.18	0.17	58%	< 0.001
Greeceb	68	66	57	53	42	2	2	0	1	1	0.02	0.02	0	0.01	0.01	-22%	0.404
Portugal	61	54	66	40	44	1	0	0	1	2	0.01	0	0	0.01	0.02	50%	0.300
Czech Republicb	59	42	48	43	68	0	2	3	4	3	0	0.02	0.03	0.04	0.03	42%	0.113
Switzerland	50	37	43	51	53	3	6	13	15	18	0.04	0.07	0.16	0.18	0.21	44%	<0.001
Norway	27	18	19	23	17	0	2	0	5	5	0	0.04	0	0.10	0.10	86%	0.016
Finlandb	20	21	22	19	16	0	1	4	3	0	0	0.02	0.07	0.05	0	13%	0.628
Total	2,216	1,761	2,074	2,222	2,112	116	161	271	388	393	0.03	0.05	0.08	0.11	0.11	35%	< 0.001

AAPC: average annual percentage change; EMGM: European Meningococcal and Haemophilus Disease Society; IMD: invasive meningococcal disease; MenW: serogroup W Neisseria meningitidis.

^a Based on laboratory-confirmed cases only.

^b Reported numbers were based on a database merged from statutory notifications and laboratory surveillance.

^c Extrapolated from the available laboratory surveillance data representing ca 80% of the notified cases, as notification data was not yet available.