Table 3 Results of Cohen's kappa classification agreement and by the percentage of strict agreement of each technologist reader for all therapeutic follow-up scans (n = 270).

From: Evaluation of the capability and reproducibility of RECIST 1.1. measurements by technologists in breast cancer follow-up: a pilot study

 

Cohen’s Kappa

All classifications

Percentage of strict agreement

All classifications

Cohen's Kappa

CR/PR/SD vs PD

Percentage of strict agreement

CR/PR/SD vs PD

Technologist reader 1

0.621 [0.543;0.7]

75.2

0.674 [0.585;0.763]

84.1

Technologist reader 2

0.525 [0.438;0.613]

70.4

0.539 [0.442;0.637]

75.9

Technologist reader 3

0.496 [0.411;0.581]

66.7

0.524 [0.421;0.627]

76.7

Technologist reader 4

0.473 [0.387;0.56]

65.6

0.606 [0.509;0.704]

81.1

Technologist reader 5

0.675 [0.6;0.75]

78.9

0.69 [0.603;0.777]

84.8

  1. The values in brackets correspond to the confidence interval of Cohen's kappa at 95%.
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