Table 5.

Results of the latent classes capture-recapture model to estimate bacterial meningitis under-reporting by patient and disease characteristics.

Variable	Group	total reported	estimated not reported	95% Confidence Interval	% of under-reporting
	All	944	196	176 – 219	17,2
Gender
	male	526	112	100 – 125	17,5
	female	418	84	76 – 94	16,8
Age
	0–5	227	37	34 – 41	14,1
	6–64	513	123	110 – 139	19,4
	>64	204	35	32 – 39	14,8
Aetiology
	Pneumo/Meningo/Haemophilus	428	11	11 – 12	2,6
	other	516	185	164 – 207	26,4
Type of infection
	AIDS/HIV	26	14	9 – 23	35,2
	Hospital	83	29	22 – 39	25,8
	Community	838	155	140 – 171	15,6
Residence
	Lazio	857	133	122 – 144	13,4
	out of region	87	63	54 – 75	42,2
Citenzenship
	Italian	816	114	105 – 123	12,3
	foreign-born	128	82	70 – 95	39,1

2001–2005, Lazio, Italy.