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Volume 6, Number 1—February 2000

Dispatch

Risk Factors for Carriage of Neisseria meningitidis during an Outbreak in Wales

Patricia E. Fitzpatrick*, Roland L. Salmon*Comments to Author , Paul R. Hunter†, Richard J Roberts‡, and Stephen R. Palmer*
Author affiliations: *PHLS Communicable Disease Surveillance Centre (Wales), Cardiff, United Kingdom; †Chester Public Health Laboratory, Chester, United Kingdom; ‡North Wales Health Authority, Mold, United Kingdom

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Table 2

Personal, family, and household factors and meningococcal carriage

Exposeda
Nonexposed
Exposed
Nonexposed
Variable Meningo-coccal carrier Non-carrier Meningo-coccal carrier Non-carrier Odds ratio (95% CI) B15 P1.16 carrier B15 P1.16 non-carrier B15 P1.16 carrier B15 P1.16 non-carrier Odds ratio (95% CI)
Age >14 40 201 13 372 5.69b 11 230 0 384 Undefb
(2.87-11.49)
Male sexc 31 267 22 304 1.60 9 289 2 324 5.04b
(0.88-2.95) (1.01-34.07)
Low socioeconomic 21 256 32 317 0.81 3 274 8 341 0.47
conditions (0.67-2.29) (0.10-1.95)
Shared bedroomc 13 106 40 466 1.43 4 115 7 499 2.48
(0.69-2.90) (0.60-9.62)
Household ratio >0.5 39 382 14 191 1.39 7 414 4 201 0.85
(0.71-2.76) (0.22-3.53)
>One child <5 yrs old 1 41 52 532 0.25 11 573 0 42 Undef
in same household (0.01-1.74)
Pet animalc 33 408 20 161 0.65 6 435 5 176 0.49
(0.35-1.22) (0.13-1.88)

aExposure to index patient.
bp< 0.05.
cData missing.

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