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Volume 19, Number 11—November 2013


Pulmonary Nontuberculous Mycobacterial Disease, Ontario, Canada, 1998–2010

Theodore K. MarrasComments to Author , David Mendelson, Alex Marchand-Austin, Kevin May, and Frances B. Jamieson
Author affiliations: University Health Network, Toronto, Ontario, Canada (T.K. Marras, D. Mendelson); Mount Sinai Hospital, Toronto (T.K. Marras, D. Mendelson); University of Toronto, Toronto (T.K. Marras, D. Mendelson, A. Marchand-Austin, F.B. Jamieson); Public Health Ontario, Toronto (A. Marchand-Austin, K. May, F.B. Jamieson)

Main Article

Table 2

Five-year prevalence of pulmonarynontuberculous mycobacterial disease, Ontario, Canada, 1998–2002 and 2006–2010*

Isolate 1998–2002 2006–2010 p value
M. avium complex 18.0 26.5 <0.0001
M. xenopi 7.4 9.5 <0.0001
M. fortuitum 0.63 1.2 0.01
M. abscessus 0.63 1.2 <0.0001
Other nontuberculous Mycobacterium spp. 1.8 3.0 <0.0001
All nontuberculous Mycobacterium spp. 29.3 41.3 <0.0001

*Period prevalence of disease excludes Mycobacterium gordonae (a rarely pathogenic species) and is calculated as the total number of persons whose illness fulfilled disease criteria (>2 sputum nontuberculous Mycobacterium isolates or 1 bronchoscopic or biopsy nontuberculous Mycobacterium isolate) during 1 of the 5-year periods of interest (1998–2002 and 2006–2010), divided by the Ontario population at the midpoints of the periods (2000 for 1998–2002 and 2008 for 2006–2010).

Main Article