Table 3.

Reliability of the HCAT-DK, and Comparison of HCAT and HCAT-DK

Intra- and Inter-Reliability of the HCAT-DKa	Agreement Coefficient [CI95%]
Rater 1, first rating – Rater 2	0.79 [0.76–0.83]
Rater 1, second rating – Rater 2	0.85 [0.82–0.88]
Rater 1, first rating – Rater 1, second rating	0.79 [0.75–0.83]
Inter-Reliability Across the HCAT and HCAT-DKa
Rater (HCAT) - Rater 1(HCAT-DK), first rating	0.72 [0.68–0.76]
Rater (HCAT) - Rater 1(HCAT-DK), second rating	0.70 [0.65–0.75]
Rater (HCAT) - Rater 2(HCAT-DK)	0.73 [0.69–0.77]

Note: ^aGwet’s AC1 agreement coefficient was used, applying quadratic weights to assign more weight to large discrepancies.