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Table 1 The mean difference (95%CI) between the three tympanic measurements made by each of the 3 observers/devices and the intra-class correlation coefficient (ICC)

From: Comparability of tympanic and oral mercury thermometers at high ambient temperatures

 

Mean difference ± standard deviation (95%CI)^*

ICC (95%CI)

Observer/device

Reading 2 vs 1

Reading 3 vs 2

Reading 3 vs 1

 
 

N = 201

N = 201

N = 201

 

1

0.03 ± 0.01

0 ± 0.09

0.04 ± 0.12

0.993

 

(0.02 to 0.05)

(0 to 0.02)

(0.02 to 0.05)

(0.991-0.994)

2

0.03 ± 0.12

0.01 ± 0.12

0.03 ± 0.15

0.979

 

(0.01 to 0.05)

(−0.01 to 0.02)

(0.01 to 0.05)

(0.962-0.977)

3

0.05 ± 0.22

−0.02 ± 0.16

0.03 ± 0.26

0.971

 

(0.02 to 0.09)

(−0.04 to 0)

(0 to 0.07)

(0.964 -0.977)

  1. ^ Temperature in degrees Celsius.
  2. * The mean difference is calculated by subtracting the later reading from the former reading, in the order they were taken e.g. Reading 2 vs 1, is the mean difference of the second temperature reading minus the first temperature reading.