Skip directly to site content Skip directly to page options Skip directly to A-Z link Skip directly to A-Z link Skip directly to A-Z link
Volume 10, Number 3—March 2004
Research

Correlating Epidemiologic Trends with the Genotypes Causing Meningococcal Disease, Maryland

M. Catherine McEllistrem*Comments to Author , John A. Kolano*, Margaret A. Pass†, Dominique A. Caugant‡, Aaron B. Mendelsohn§, Antonio Guilherme Fonseca Pacheco§, Jafar Razeq¶, Lee H. Harrison*†, and the Maryland Emerging Infections Program
Author affiliations: *University of Pittsburgh Graduate School of Public Health and School of Medicine, Pittsburgh, Pennsylvania, USA; †Johns Hopkins University Bloomberg School of Hygiene and Public Health, Baltimore, Maryland, USA; ‡World Health Organization Collaborating Centre for Reference and Research on Meningococci, Norwegian Institute of Public Health, Oslo, Norway; §University of Pittsburgh Graduate School of Public Health, Pittsburgh, Pennsylvania, USA; ¶Maryland Department of Health and Mental Hygiene, Baltimore, Maryland, USA

Main Article

Table 3

Pairwise similarities (% similarity) of serogroup C strains, by age group and time period

Period Age group (y) No. isolates 25% 50% (median) 75% Mean SD p valuea
1992–1999
 <14
 32
 63.6
 78.3
 87.0
 75.4
 14.9
 <0.01
15–24
 28
 83.3
 87.5
 91.7
 87.6
 7.4
>25
 14
 64.0
 72.7
 81.8
 74.2
 12.1
1992–1997
 <14
 26
 60.9
 76.2
 84.6
 73.1
 15.3
 <0.01
15–24
 20
 81.8
 88.0
 90.9
 86.2
 7.2
>25
 10
 61.5
 72.7
 83.3
 73.2
 13.7
1998–1999 <14
 6
 82.6
 87.0
 95.7
 88.9
 6.9
 <0.01
15–24
 8
 98.9
 100
 100
 97.0
 5.4
>25 4 70.7 72.7 78.2 76.1 8.1

aKruskal-Wallis rank sum test for the comparison of those 15–24 years of age versus each of the two other age groups.

Main Article

Page created: February 08, 2011
Page updated: February 08, 2011
Page reviewed: February 08, 2011
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.
file_external