. Author manuscript; available in PMC: 2021 Feb 1.

Published in final edited form as: Abdom Radiol (NY). 2020 Feb;45(2):293–300. doi: 10.1007/s00261-019-02283-x

Table 5.

Agreement between 4 readers under each b value

Reader combination	b800 Kappa (95% CI)	b1500 Kappa (95% CI)	b800 percent concordance (%)	b1500 percent concordance (%)
R1 & R2	0.214 (− 0.178, 0.552)	0.255 (− 0.106, 0.592)	60.7	64.3
R1 & R3	0.286 (− 0.14, 0.579)	0.23 (− 0.099, 0.532)	64.3	60.7
R1 & R4	0.214 (− 0.172, 0.571)	0.255 (− 0.137, 0.602)	60.7	64.3
R2 & R3	0.632 (0.251, 0.855)	0.505 (0.189, 0.786)	82.1	75
R2 & R4	0.454 (0.172, 0.771)	0.708 (0.312, 0.92)	71.4	85.7
R3 & R4	0.376 (0.071, 0.689)	0.646 (0.357, 0.924)	67.9	82.1
4 Readers	0.363 (0.153, 0.581)	0.433 (0.229, 0.648)	67.8^*	72^*

Percent concordance for 4 readers was the average of that value on all possible pairs