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Volume 16, Number 11—November 2010

Research

Comparison of 3 Infrared Thermal Detection Systems and Self-Report for Mass Fever Screening

An V. Nguyen, Nicole J. CohenComments to Author , Harvey Lipman1, Clive M. Brown, Noelle-Angelique Molinari, William L. Jackson, Hannah Kirking, Paige Szymanowski, Todd W. Wilson, Bisan A. Salhi, Rebecca R. Roberts, David W. Stryker, and Daniel B. Fishbein
Author affiliations: Centers for Disease Control and Prevention, Atlanta, Georgia, USA (A.V. Nguyen, N.J. Cohen, H. Lipman, C.M. Brown, N.A. Molinari, W.L. Jackson, H. Kirking, P. Szymanowski, T.W. Wilson, D.B. Fishbein); Council of State and Territorial Epidemiologists, Atlanta (A.V. Nguyen); Emory University, Atlanta (P. Szymanowski, B.A. Salhi); John H. Stroger, Jr. Hospital of Cook County, Chicago, Illinois, USA (R.R. Roberts); Presbyterian Healthcare Services, Albuquerque, New Mexico, USA (D.W. Stryker); 1Deceased.

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Table 2

Associations between temperature measurements by 3 infrared thermal detection systems and potential covariates, using bivariate analysis, among patients in 3 emergency departments, 2008–2009*

Characteristics Oral thermometer,
n = 2,873 patients OptoTherm,
n = 2,809 patients FLIR,
n = 2,314 patients Wahl,
n = 2,848 patients
Gender
Male mean temperature, °F (SD) 97.85 (0.91) 94.36 (1.25) 95.77 (1.33) 89.52 (2.40)
Female mean temperature, °F (SD) 97.95 (0.87) 94.19 (1.27) 95.59 (1.40) 89.23 (2.73)
p value (t test)
0.002
<0.001
0.002
0.003
Age
Correlation coefficient r –0.12 –0.15 –0.10 –0.10
p value
<0.001
<0.001
<0.001
<0.001
Time of day
Correlation coefficient r 0.08 0.24 0.19 0.27
p value
<0.001
<0.001
<0.001
<0.001
Antipyretic/analgesic use
Yes (mean temperature °F) (SD) 97.96 (1.01) 94.39 (1.34) 95.76 (1.47) 89.47 (2.61)
No (mean temperature °F) (SD) 97.86 (0.81) 94.22 (1.20) 95.64 (1.32) 89.35 (2.54)
p value (t test)
0.003
<0.001
0.048
0.21
Room temperature
Correlation coefficient r 0.01 0.19 0.19 0.19
p value
0.77
<0.001
<0.001
<0.001
Oral temperature
Correlation coefficient r 0.43 0.42 0.14
p value <0.001 <0.001 <0.001

*FLIR ThermoVision A20M (FLIR Systems Inc., Boston, MA, USA), OptoTherm Thermoscreen (OptoTherm Thermal Imaging Systems and Infrared Cameras Inc., Sewickley, PA, USA), and Wahl Fever Alert Imager HSI2000S (Wahl Instruments Inc., Asheville, NC, USA).

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