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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.