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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 3

Association between measured temperature, difference, and covariates, general linear regression with site-specific fixed effects in 3 emergency departments, USA, 2008–2009

Characteristics Oral,
n = 1,865 patients OptoTherm,
n = 1,851 patients Difference 
(oral–OptoTherm) FLIR, 
n = 1,360 patients Difference (oral–FLIR) Wahl, 
n = 1,856 patients Difference (oral–Wahl)
Intercept (SE) 98.220 (0.936) 15.027
(3.467) 14.426
(1.337) 15.777
(4.150) 14.309
(1.559) 13.160
(6.541) 21.769
(2.489)
Variable in model*
Oral temperature 0.701† 0.693† 0.645†
Male sex
–0.055‡
0.254†
–0.271†
0.237†
–0.260†
0.501†
–0.522†
Age 0.011‡ –0.160§ 0.019§ –0.029§ 0.034§ –0.001‡ 0.005‡
Age squared
–0.0002§
0.0001‡
–0.0002‡
0.0003§
–0.0004§
–0.002‡
0.0001‡
Site¶
Albuquerque –0.498† 0.915† –1.061† –0.214§ 0.058‡ 4.256† –4.431†
Atlanta
–0.309†
0.514†
–0.603†
0.302§
–0.399†
0.043‡
–0.149‡
Time of day 0.104§ 0.156§ –0.126§ 0.131§ –0.100‡ 0.352† –0.315†
Time of day squared
–0.003§
–0.004§
0.003‡
–0.003‡
0.002‡
–0.008§
0.007§
Antipyretic use 0.106§ 0.137§ –0.106§ 0.118* –0.086‡ 0.075‡ –0.039‡
Room temperature –0.010‡ 0.133† –0.137† 0.160† –0.162† 0.131† –0.135†
Self-reported fever (No) 0.432† 0.148§ 0.022‡ 0.149‡ 0.003‡ –0.115‡ 0.264§

*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). Value of β coefficient (β) for each variable in the model is listed in the columns.
†p<0.001.
‡Not significant (p>0.05).
§p<0.05.
¶Referent site is Chicago.

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