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Volume 9, Number 12—December 2003

Research

Human Monocytotropic Ehrlichiosis, Missouri

Juan P. Olano*Comments to Author , Edwin Masters†, Wayne Hogrefe‡, and David H. Walker*
Author affiliations: *University of Texas Medical Branch, Galveston, Texas, USA; †Premier Family Physicians, Cape Girardeau, Missouri, USA; ‡Focus Technologies, Cypress, California, USA

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Table 4

Association of selected demographic variables and laboratory data with severity of illness for 29 patients with human monocytotropic ehrlichiosis (HME), Cape Girardeau, Missouri, 1997–1999

Parameter Nonhospitalized
mean ± SD/Median Hospitalized
mean ± SD/median p value
Age (y)
45.8 ± 17.5
51.8 ± 19.1
0.41
Leukocyte count, x 109 L
5.1 ± 2.6
4.0 ± 1.7
0.21
Platelets
192.4 ± 109
117 ± 66
0.05
Neutrophil counts, x 109 a
2,960
2,590
0.59
Lymphocyte counts x 109 L
1,948.5 ± 112.7
1,383.4 ± 1,167.7
0.26
Aspartate aminotransferase, U/La 89 49 0.96

aDifferences analyzed by Mann-Whitney rank sum test. All others analyzed by t-test.

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