Table 5.

Interobserver agreement for number of elbow fractures treated in 1 year

Variable	κ 1 (n = 22)	Classification	κ 2 (n = 41)	Classification	κ 3 (n = 47)	Classification	κ 4 (n = 58)	Classification
Gap of > 2 mm	0.53	Moderate	0.53	Moderate	0.59	Moderate	0.54	Moderate
Complete loss of cortical contact	0.4	Fair	0.46	Moderate	0.44	Moderate	0.42	Moderate
Unstable fracture	0.5	Moderate	0.52	Moderate	0.51	Moderate	0.45	Moderate
Associated ligament injuries/fractures	0.39	Fair	0.33	Fair	0.31	Fair	0.34	Fair
Recommend operative treatment	0.52	Moderate	0.51	Moderate	0.56	Moderate	0.5	Moderate

1 = 0–5 elbow fractures treated; 2 = 6–10 elbow fractures treated; 3 = 11–20 elbow fractures treated; > 20 elbow fractures treated.