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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 3

Key variables in the sample in a study of weather-dependent risk for Legionnaires’ disease, United States, 1998–2011*

Variable Cases, n = 3,005 Controls, n = 189,412
Age, y (± SD)
61.80 (15.61)
68.83 (17.15)
Sex, %
F 39.13 48.18
M
60.87
51.82
Race/ethnicity, %
White 76.64 79.60
Black 14.81 9.52
Hispanic 4.66 6.06
Other
3.89
4.83
Payer, %
Medicare 45.82 69.22
Medicaid 7.69 9.27
Private 38.80 16.97
Uninsured 4.89 2.63
Other
2.80
1.92
Mean latitude, °N (± SD) 40.02 (2.75) 38.86 (3.30)
Mean monthly temperature, °F (± SD) 58.49 (14.96) 52.61 (15.32)
Mean monthly relative humidity, % (± SD) 70.03 (9.22) 67.34 (10.45)
Mean monthly total rainfall, mm (± SD) 80.39 (69.15) 61.68 (144.67)

*The analysis comprised data from 26 states: Arizona, Arkansas, California, Colorado, Connecticut, Illinois, Iowa, Kentucky, Maryland, Massachusetts, Mississippi, Missouri, Montana, Nevada, New Hampshire, New Jersey, New York, North Carolina, Oregon, Pennsylvania, Rhode Island, Utah, Vermont, Virginia, Washington, Wisconsin.

Main Article

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