Table 6

Weather-Dependent Risk for Legionnaires’ Disease, United States

Jacob E. Simmering, Linnea A. Polgreen, Douglas B. Hornick, Daniel K. Sewell, and Philip M. Polgreen

Author affiliations: The University of Iowa, Iowa City, Iowa, USA

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.

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Page created: October 16, 2017

Page updated: October 16, 2017

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Volume 23, Number 11—November 2017

Research

Weather-Dependent Risk for Legionnaires’ Disease, United States

Table 6