Volume 23, Number 11—November 2017
Research
Weather-Dependent Risk for Legionnaires’ Disease, United States
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.