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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 1

Sample sizes for Legionnaires’ disease cases and other pneumonia controls in a study of weather-dependent risk for Legionnaires’ disease, United States, 1998–2011*

Total 5,172 (100.0) 447,132 (100.0)
Age >18 y 5,158 (99.7) 418,086 (93.5)
AHA ID 4,039 (78.1) 288,427 (64.5)
Sex 4,039 (78.1) 288,427 (64.5)
Payer 4,034 (78.0) 287,847 (64.4)
Admission month and year 3,542 (68.5) 253,725 (56.7)
Race 3,006 (58.1) 189,630 (42.4)
Weather station within 100 km (62 mi) of hospital 3,005 (58.1) 189,412 (42.4)

*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. AHA ID, American Hospital Association identifier.

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