Child Health Nurs Res.  2022 Jan;28(1):62-69. 10.4094/chnr.2022.28.1.62.

Axillary temperature measurements based on smart wearable thermometers in South Korean children: comparison with tympanic temperature measurements

• Choi Y
• Ahn HY

• KMID: 2525118
• DOI: http://doi.org/10.4094/chnr.2022.28.1.62

Abstract

Purpose
This study explored the validity of a new type of thermometer and parent satisfaction with the new device. This 24-hour continuous monitoring smart wearable wireless thermometer (TempTraq^®) uses a very small semiconductor sensor with a thin patch-like shape.
Methods
We obtained 397 sets of TempTraq^® axillary temperatures and tympanic temperatures from 44 pediatric patients. Agreement between the axillary and tympanic measurements, as well as the validity of the TempTraq^® axillary temperatures, were evaluated. Satisfaction surveys were completed by 41 caregivers after the measurements.
Results
The TempTraq^® axillary temperatures demonstrated a strong positive correlation with the tympanic temperatures. The Bland-Altman plot and analysis of TempTraq^® axillary temperatures and tympanic temperatures showed that the mean difference was +0.45 ℃, the 95% limits of agreement were -0.57 to +1.46 ℃. Based on a tympanic temperature of 38 ℃, the results of validity of fever detection were sensitivity 0.85 and specificity 0.86. Satisfaction scores for TempTraq^® temperature measurement were all > 4 points (satisfactory).
Conclusion
TempTraq^® smart axillary temperature measurement is an appropriate method for measuring children's temperatures since it was highly correlated to tympanic temperatures, had a reliable level of sensitivity and specificity, and could be used safely and conveniently.

Keyword

Body temperatures; Thermometers; Wearable electronic devices; Child