Surveillance of Extrapulmonary Nontuberculous Mycobacteria Infections

Oregon, USA, 2007-2012

Emily Henkle; Katrina Hedberg; Sean D. Schafer; Kevin L. Winthrop

Disclosures

Emerging Infectious Diseases. 2017;23(10):1627-1630. 

In This Article

Statistical Analysis

We described patients by age, sex, and species isolated overall and by source of specimen. We considered extrapulmonary cases to be incident at the time of isolation, given that treatment for extrapulmonary infections is typically in the range of weeks to several months and the cure rate is high.[4] We calculated the annual incidence as the number of new cases in a given year divided by the midyear population using population data from the Portland State University Population Research Center[7] and report the average annual incidence and standard 95% CIs for 2007–2012. We used Poisson models using a log link to estimate the overall incidence rate trend over the study period. We imported all data into SAS version 9.3 (SAS Institute Inc., Cary, NC) for analysis. The study was considered to be public health practice (nonresearch) by the Oregon Health Authority and was conducted under Oregon Administrative Rule 333–019–0005 (Conduct of Special Studies).

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