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Volume 23, Number 11—November 2017

Research

Weather-Dependent Risk for Legionnaires’ Disease, United States

Jacob E. Simmering, Linnea A. Polgreen, Douglas B. Hornick, Daniel K. Sewell, and Philip M. PolgreenComments to Author 
Author affiliations: The University of Iowa, Iowa City, Iowa, USA

Main Article

Table 6

Estimated probability of Legionnaires’ disease given bacterial pneumonia in a 61–70-year-old white man on Medicare located at 42°N, admitted to a hospital in April 2011*

Probability of Legionnaires’ disease by rainfall level
Relative <60°F

60°F–80°F

>80°F
humidity, %
Dry
Normal
Wet
Dry
Normal
Wet
Dry
Normal
Wet
0.0–50.0 1.46 1.98 2.13 0.81 1.10 1.18 2.28 3.08 3.31
50.1–55.0 1.24 1.68 1.81 1.13 1.53 1.64 0 0 0
55.1–60.0 0.86 1.16 1.25 0.72 0.98 1.06 0 0 0
60.1–65.0 0.97 1.32 1.42 1.15 1.56 1.68 1.86 2.52 2.71
65.1–70.0 1.16 1.57 1.69 1.44 1.95 2.10 1.13 1.53 1.64
70.1–75.0 1.17 1.59 1.72 1.88 2.54 2.74 0.71 0.96 1.03
75.1–80.0 1.12 1.52 1.63 1.99 2.69 2.90 1.59 2.16 2.32
80.1–100.0 0.95 1.29 1.39 2.46 3.32 3.57 0 0 0

*Because of the presence of month, latitude, and year in the model, these predicted probabilities are valid only on a line along 42°N in April 2011. The predicted values for other months (e.g., July or December) will differ, as will the predicted values for locations further north or south than 42°N. Dry, <18 mm; normal, 18–85.85 mm; wet, >85.85 mm.

Main Article

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