Table 2.

Interobserver Kappa coefficients among observers (Obs) for the first readings

Imaging modality	Obs1–Obs2	Obs1–Obs3	Obs1–Obs4	Obs1–Obs5	Obs2–Obs3	Obs2–Obs4	Obs2–Obs5	Obs3–Obs4	Obs3–Obs5	Obs4–Obs5
	Weighted Kappa-SE	Weighted Kappa-SE	Weighted Kappa-SE	Weighted Kappa-SE	Weighted Kappa-SE	Weighted Kappa-SE	Weighted Kappa-SE	Weighted Kappa-SE	Weighted Kappa-SE	Weighted Kappa-SE
Accuitomo 170, 40×40 mm FOV (0.080 mm3)	0.71–0.060	0.76–0.057	0.66–0.066	0.89–0.044	0.75–0.060	0.68–0.064	0.78–0.056	0.71–0.067	0.82–0.052	0.74–0.064
Accuitomo 170, 60×60 mm FOV (0.125 mm3)	0.71–0.062	0.66–0.061	0.63–0.064	0.81–0.055	0.71–0.063	0.65–0.065	0.69–0.062	0.60–0.066	0.78–0.063	0.57–0.065
Kodak 9000, 50×37 mm FOV (0.076 mm3)	0.73–0.062	0.75–0.061	0.71–0.061	0.83–0.053	0.77–0.060	0.65–0.064	0.80–0.056	0.74–0.062	0.82–0.057	0.72–0.062
Kodak 9000, 50×37 mm FOV (0.100 mm3)	0.69–0.063	0.72–0.060	0.67–0.062	0.78–0.065	0.66–0.065	0.58–0.061	0.68–0.066	0.55–0.064	0.73–0.067	0.55–0.068
Vatech Pax-Duo 3D 50×50 mm FOV (0.080 mm3)	0.78–0.060	0.76–0.062	0.69–0.063	0.91–0.040	0.77–0.050	0.63–0.063	0.74–0.061	0.61–0.064	0.72–0.062	0.69–0.062
Vatech Pax-Duo3D 85×85 mm FOV (0.120 mm3)	0.60–0.064	0.58–0.065	0.65–0.065	0.78–0.055	0.69–0.062	0.51–0.065	0.48–0.064	0.49–0.063	0.64–0.064	0.53–0.069

FOV, field of view; SE, standard error.

Accuitomo 170 is manufactured by J Morita Mfg. Corp., Kyoto, Japan; Kodak 9000 by Eastman Kodak Co., Rochester, NY; and Vatech Pax-Duo3D by Vatech, Seoul, Republic of Korea.