Table 2.

Method agreement results between the Thermofocus NCIT, Firhealth NCIT, axillary, and tympanic thermometers

	Mean difference and 95% CI (°C)	Lower limit of agreement and 95% CI (°C)	Upper limit of agreement and 95% CI (°C)
Method comparison
Thermofocus NCIT minus electronic axillary, n = 371	−0.14 (−0.21 to −0.06)	−1.57 (−1.69 to −1.44)	1.29 (1.16 to 1.42)
Firhealth NCIT minus electronic axillary, n = 374	−0.16 (−0.23 to −0.09)	−1.54 (−1.66 to −1.41)	1.22 (1.10 to 1.34)
Thermofocus NCIT minus tympanic, n = 384	−0.10 (−0.17 to −0.03)	−1.55 (−1.68 to −1.42)	1.35 (1.22 to 1.48)
Firhealth NCIT minus tympanic, n = 387	−0.10 (−0.17 to −0.03)	−1.47 (−1.59 to −1.35)	1.28 (1.16 to 1.40)
Thermofocus NCIT minus Firhealth NCIT, n = 395	0.00 (−0.04 to 0.05)	−0.90 (−0.98 to −0.82)	0.91 (0.83 to 0.99)
Electronic axillary minus tympanic, n = 365	0.06 (−0.02 to 0.14)	−1.49 (−1.63 to −1.34)	1.61 (1.47 to 1.75)
Reproducibility
Thermofocus NCIT 1st minus 2nd reading, n = 395	−0.04 (−0.07 to −0.01)	−0.56 (−0.60 to −0.51)	0.47 (0.43 to 0.52)
Firhealth NCIT 1st minus 2nd reading, n = 396	0.01 (−0.02 to 0.04)	−0.60 (−0.65 to −0.54)	0.61 (0.56 to 0.67)