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Volume 18, Number 9—September 2012

Research

Trends in Meningococcal Disease in the United States Military, 1971–2010

Michael P. BroderickComments to Author , Dennis J. Faix, Christian J. Hansen, and Patrick J. Blair
Author affiliations: Naval Health Research Center, San Diego, California, USA

Main Article

Table 2

Cases of meningococcal disease (n = 26), by Neisseria meningitidis serogroup, within demographic and clinical categories, United States military, 2006–2010*

Characteristic N. meningitidis serogroup, no. (%) cases
% Cases % Total population Incidence
B C Y Unknown Total
Total 6 (23) 7 (27) 9 (35) 4 (15) 26
Year of illness

2006

0 4 0 2 6 23 20 0.440

2007

2 1 1 1 5 19 20 0.367

2008

3 0 4 1 8 31 20 0.581

2009

1 0 1 0 2 8 20 0.142

2010

0 2 3 0 5 19 20 0.354
Death

Yes

2 2 1 0 5 19

No

4 5 8 4 21 81
Age range, y

17–19

2 3 4 2 11 42 7 2.343

20–24

1 3 5 1 10 38 33 0.434

25–29

1 1 0 1 3 12 23 0.188

30–34

0 0 0 0 0 0 14 0.000

35–39

2 0 0 0 2 8 12 0.250

>40

0 0 0 0 0 0 10 0.000
Clinical syndrome

Meningitis alone

2 4 1 4 11 42

Sepsis alone

3 1 4 0 8 31

Both

1 2 4 0 7 27
Vaccine type

Conjugate

3 2 4 1 10 38

Polysaccharide

3 4 4 2 13 50

Unknown

0 1 1 1 3 12
Years from vaccination to illness

<1

NA 6 7 0 13 81

1–2

NA 1 1 0 2 13

2–3

NA 0 0 0 0 0

>3

NA 0 1 0 1 6
Military branch

Air Force

1 1 0 0 2 8 23 0.120

Army

2 3 0 0 5 19 37 0.189

Coast Guard

1 0 0 0 1 4 3 0.509

Marine Corps

2 3 5 3 13 50 14 1.353

Navy

0 0 4 1 5 19 23 0.302
Location

Continental United States

4 5 8 3 20 77 71 0.418

Outside continental United States

2 2 1 1 6 23 29 0.310
Race/ethnicity

Asian

1 0 0 0 1 4 4 0.328

Black

0 3 3 0 6 23 18 0.472

Hispanic/Latino

0 0 1 0 1 4 12 0.123

White

3 4 5 4 16 62 61 0.367

Native American/Alaskan

0 0 0 0 0 0 2 0.000

Unknown

2 0 0 0 2 8 3
Sex

F

2 1 1 0 4 15 14 0.401

M

4 6 8 4 22 85 86 0.359
Military rank

Recruit

2 1 4 2 9 35 12 1.057

Enlisted

4 6 5 2 17 65 73 0.330

Officer

0 0 0 0 0 0 15 0.000

*Exact denominators are not available in all categories. Percentage values may not equal 100 because of rounding. Boldface indicates that incidence for the category is significantly different from the incidence in the remaining population (Poisson p<0.05). NA, not applicable (no serogroup B vaccine).

Main Article

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