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Table 5 Results of the latent classes capture-recapture model to estimate bacterial meningitis under-reporting by patient and disease characteristics.

From: Incidence of bacterial meningitis (2001–2005) in Lazio, Italy: the results of a integrated surveillance system

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
  1. 2001–2005, Lazio, Italy.