Volume 16, Number 11—November 2010
Research
Comparison of 3 Infrared Thermal Detection Systems and Self-Report for Mass Fever Screening
Table 3
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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Page updated: March 08, 2011
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