Table 3.

Fracture instability: differences in inter-observer variability

	N	Categorical	κ1	SE1	N	Categorical	κ2	SE2	P value
Fractures per year
10 or less vs. 11 or more	5	Slight	0.16	0.06	26	Fair	0.31	0.02	0.01
10 or less vs. 20 or more	5	Slight	0.16	0.06	24	Fair	0.32	0.02	0.01
Specialty
Trauma vs. Hand	11	Fair	0.25	0.03	10	Fair	0.36	0.04	0.04
Hand vs. non Hand	10	Fair	0.36	0.04	21	Fair	0.27	0.02	0.04

N Number of observers, SE standard error