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Volume 18, Number 11—November 2012

Research

Litchi–associated Acute Encephalitis in Children, Northern Vietnam, 2004–2009

Juliette Paireau, Nguyen Hai Tuan, Rémi Lefrançois, Matthew R. Buckwalter, Ngu Duy Nghia, Nguyen Tran Hien, Olivier Lortholary, Sylvain Poirée, Jean-Claude Manuguerra, Antoine Gessain, Matthew L. Albert, Paul T. Brey, Phan Thi Nga, and Arnaud FontanetComments to Author 
Author affiliations: Institut Pasteur, Paris, France (J. Paireau, R. Lefrançois, M.R. Buckwalter, J.-C. Manuguerra, A. Gessain, M.L. Albert, A. Fontanet); National Institute of Hygiene and Epidemiology, Hanoi, Vietnam (N.H. Tuan, N.D. Nghia, P.T. Nga, N.T. Hien); Université Paris X-Nanterre, Paris (R. Lefrançois); INSERM U818, Paris (M.R. Buckwalter, M.L. Albert); Hôpital Necker-Enfants Malades, Paris (O. Lortholary, S. Poirée); Université Paris Descartes, Paris (O. Lortholary, M.L. Albert); CNRS URA 1930, Paris (A. Gessain); Institut Pasteur, Vientiane, Lao People’s Democratic Republic (P.T. Brey); and Conservatoire National des Arts et Métiers, Paris (A. Fontanet)

Main Article

Table 3

Multivariate analysis of Ac Mong encephalitis, Bac Giang Province, Vietnam, 2004–2009

Variable/category IRR* (95% CI) p value†
Litchi surface, % commune surface

<1.49

 1 <0.001

1.49–5.84

 1.52 (0.90–2.57)

5.84–12.92

 2.94 (1.88–4.60)

>12.92

 2.76 (1.76–4.32)
Poultry density, no./km2

<1,449.79

 1 <0.001

1,449.79–3,715.18

 0.62 (0.43–0.91)

3,715.18–7,065.25

 0.61 (0.42–0.89)

>7,065.25

 0.25 (0.15–0.43)
Mean humidity, %, January–April

<82.07

 1 <0.001

82.07–83.55

 0.84 (0.61–1.16)

>83.55

 0.35 (0.23–0.54)

*IRR, incidence rate ratio.
†Indicates global p value.

Main Article

Page created: October 15, 2012
Page updated: October 15, 2012
Page reviewed: October 15, 2012
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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