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Volume 19, Number 9—September 2013
Research

Underreporting of Viral Encephalitis and Viral Meningitis, Ireland, 2005–2008

Tara A. KellyComments to Author , Piaras O’Lorcain, Joanne Moran, Patricia Garvey, Paul McKeown, Jeff Connell, and Suzanne Cotter
Author affiliations: Health Service Executive–Health Protection Surveillance Centre, Dublin, Ireland (T.A. Kelly, P. O’Lorcain, J. Moran, P. Garvey, P. McKeown, S. Cotter); National Virus Reference Laboratory, Belfield, Dublin (J. Moran, J. Connell)

Main Article

Table 2

Crude incidence rates per 100,000 population and proportions of lumbar puncture procedures among hospitalized patients with a diagnosis of VE or VM, Ireland, 2005–2008*

Rate or proportion Year of discharge/laboratory confirmation
 Average annual rate or proportion
2005 2006 2007 2008
Hospitalization rate for all patients with lumbar puncture†
 99.20
 116.30
 120.05
 129.53
 116.27
VE patient hospitalization rate 2.45 2.26 2.55 2.71 2.49
Hospitalization rate among VE patients with lumbar puncture 1.18 1.18 1.44 1.44 1.31
% VE hospitalizations with lumbar puncture
 48.16
 52.21
 56.47
 53.14
 52.61
VM patient hospitalization rate 6.18 10.05 5.17 6.13 6.88
Hospitalization rate among VM patients with lumbar puncture 4.34 7.38 3.89 4.74 5.09
% VM hospitalizations with lumbar puncture
 70.23
 73.43
 75.24
 77.32
 73.98
CSF collection rate of samples sent for virologic testing
 31.46
 40.71
 39.65
 41.53
 38.34
Laboratory CSF confirmation rate of VE 0.50 0.42 0.42 0.71 0.51
% Laboratory confirmed CSF for VE
 1.59
 1.03
 1.06
 1.71
 1.33
Laboratory CSF confirmation rate of VM 0.28 2.83 1.11 2.24 1.62
Laboratory confirmed CSF for VM, %
 0.89
 6.95
 2.80
 5.39
 4.23
Laboratory CSF confirmation rate of VE or VM 0.78 3.25 1.53 2.95 2.13
% Laboratory confirmed CSF for VE or VM 2.48 7.98 3.69 7.10 5.56

*VE, viral encephalitis; VM, viral meningitis; CSF, cerebrospinal fluid.
†All hospitalized patients who underwent lumbar puncture for any reason, diagnostic or therapeutic.

Main Article

Page created: August 20, 2013
Page updated: August 20, 2013
Page reviewed: August 20, 2013
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.
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