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Volume 13, Number 10—October 2007
THEME ISSUE
Global Poverty and Human Development

Research

Dengue Fever Seroprevalence and Risk Factors, Texas–Mexico Border, 2004

Joan Marie Brunkard*Comments to Author , Jose Luis Robles López†, Josue Ramirez‡, Enrique Cifuentes§, Stephen J. Rothenberg§¶, Elizabeth A. Hunsperger#, Chester G. Moore**, Regina M. Brussolo††, Norma A. Villarreal††, and Brent M. Haddad*
Author affiliations: *University of California, Santa Cruz, California, USA; †Servicios de Salud de la Jurisdicción Sanitaria III, Matamoros, Mexico; ‡Health Department–City of Brownsville, Brownsville, Texas, USA; §Instituto Nacional de Salud Pública, Cuernavaca, Mexico; ¶Centro de Investigacíon y de Estudios Avanzados–Instituto Politéchnico Nacional], Mérida, Mexico; #Centers for Disease Control and Prevention, San Juan, Puerto Rico; **Colorado State University, Fort Collins, Colorado, USA; ††Laboratorio Estatal de Salud Pública de Tamaulipas, Ciudad Victoria, Mexico;

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Table 3

Population characteristics and risk factors for dengue in Brownsville, Texas, and Matamoros, Mexico, 2004

Risk factor Brownsville, % Matamoros, % p value*
Piped water 98 98 1.000
Buy water 95 99.7 <0.001
Sewerage 91 88 0.495
Street drainage 82 48 <0.001
Store water 4 34 <0.001
Screens present 76 64 0.009
Intact screens 40 32 0.054
Air-conditioning (room and central) 83 32 <0.001
Discarded tires 44 20 <0.001
Larval habitat 88 92 0.284
Mosquito larvae present 31 30 0.764
Crossed border (1 mo) 54 38 <0.001
Crossed border (3 mo) 66 45 <0.001
Median household weekly income ($ US) 300 100 <0.001
Mean persons/household 3.9 4.2 0.028
Mean hours/day at home 18.3 19.4 0.022

*Probability values of variables with percentages by adjusted Wald test; the remainder by 2-sample Wilcoxon-Mann-Whitney rank-sum test.

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