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Volume 17, Number 2—February 2011

Research

Risk Factors for Cryptococcus gattii Infection, British Columbia, Canada

Laura MacDougallComments to Author , Murray Fyfe, Marc Romney, Mike Starr, and Eleni Galanis
Author affiliations: Author affiliations: British Columbia Centre for Disease Control, Vancouver, British Columbia, Canada (L. MacDougall, M. Fyfe, M. Romney, M. Starr, E. Galanis); Public Health Agency of Canada, Ottawa, Ontario (L. MacDougall); Vancouver Island Health Authority, Victoria, British Columbia, Canada (M. Fyfe); University of British Columbia, Vancouver (M. Fyfe, M. Romney, E. Galanis); St. Paul’s Hospital, Vancouver (M. Romney); Royal Children’s Hospital, Melbourne, Victoria, Australia (M. Starr)

Main Article

Table 2

Comparison of risk factor prevalence among Cryptococcus gattii–infected patients and the general population, British Columbia, Canada, 1999–2007

Risk factor Prevalence, % (95% confidence interval)
p value
C. gattii–infected case-patients General population
Age >50 y 72.4 (64.9–79.8) 31.3 <0.001
Male sex 55.8 (46.4–65.1) 49.6 0.198
Current smoker
41.9 (35.3–48.6)
17.8 (16.9–18.6)*
<0.001
All invasive cancers 24.7 (21.7–27.7) 3.6 <0.001
Leukemia/lymphoma only 8.4 (7.6–9.2) 0.3 <0.001
Lung only
3.9 (3.3–4.5)
0.1
<0.001
HIV infection
3.7 (2.9–4.4)
0.2
<0.001
Chronic obstructive pulmonary disease
4.1 (−0.5 to 9.6)
8.0†
0.090
Asthma 3.4 (−1.1 to 7.9) 7.8 0.054

*From original data source.
†Estimated based on range provided.

Main Article

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