Inter-observer reliability of alternative diagnostic methods for proximal humerus fractures: a comparison between attending surgeons and orthopedic residents in training

Table 2 Summary of kappa coefficients for intra-observers agreement between AO / ASIF and Neer classifications by expert diagnostic method (Group 1)

Diagnostic Method	Means	Standard deviation	Minimum	Maximum	1st Quartile	Median	3rd. Quartile	N
X-ray	0.677	0.270	0.167	1.000	0.531	0.683	0.953	20
Tomo	0.531^b	0.316	−0.108	1.000	0.280	0.586	0.778	20
3D	0.730^a	0.265	0.182	1.000	0.525	0.795	1.000	20
Holographic	0.654	0.278	0.069	1.000	0.489	0.666	0.831	20

Effects of diagnostic method: F3,57 = 3.67 (p = 0.017)
Kolmogorov-Smirnov test for normality (p = 0.638)
(a) and (b) show different means according to multiple comparisons using Bonferroni adjustments

ISSN: 1754-9493