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Submitted: 04 July 2018 Modified: 04 July 2018
HERDIN Record #: R04A-DLSHSI-18070415225516

Agreement between a Non-Contact Infrared Thermometer and Axillary Digital Thermometer in Measuring Temperature in Neonates.

Aileen V. Anies,
Wilfredo Santos,
Jindra Tetangco

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Objective: To determine if there is an agreement between a Non-contact Infrared Thermometer and Digital Axillary thermometer in measuring Body temperature in Neonates aged 0-28 days old and to determine the mean difference and limits of agreement between the two methods.Design: The study design is a cross-sectional prospective study.Setting: Neonatal service unit of De La Salle University Medical Hospital including the nursery and outpatient department.Study Population: The participants were all well term and late preterm neonates, both male and female who were between 0-28 days old and free from any history of critical conditions such as respiratory, renal and cardiac diseaseMain Outcome Measure: Body temperature of the neonates was repeatedly measured using both the methods and the agreement between the two methods was analyzed using the Bland-Altman analysis. Results: Body temperature was measured repeatedly on 100 patients. Majority were aged 37-38 weeks (58%), average weight was 2.8 (± 0.38) with majority falling between 2.1 to 3 kilograms (65%) , 66%were between 51 to 55 cm long with an average birth length of 52.1 cm (± 2.8). Correlation coefficient between the two methods is r = 0.4758 (95% confidence interval, CI = 0.31 to 0.61, P < 0.0001). Regression line has a slope of 0.63 (0.40 to 0.86) and an intercept of 13.57 (4.99 to 22.15) which shows that an increase in NCIT will also result to an increase in DAT. Likewise, a decrease in NCIT will also mean a decrease in DAT. Using the Bland- Altman analysis, results showed the average difference was 0.035 degrees celsius. The upper limit of agreement is 0.54 degrees Celsius while the lower limit of agreement was 0.47 degrees Celsius. The narrow agreement levels indicate that the two measurements are precise and that variabilities in the measurement are acceptable at 95% confidence range.Conclusions: The Bland-Altman analysis shows only a small and non-significant mean difference suggesting small or no difference at all between the two groups and good agreement.

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