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Table 5 Comparison of the relative distribution (%) of proximal humeral fractures by AO/OTA groups in the SFR assessed by the gold standard and the Edinburgh population [16]

From: Validity of humerus fracture classification in the Swedish fracture register

AO/OTA group SFR Court-Brown et al.
A1 10,4 14
A1.3 4.6 5
A2 24.2 27
A3 18.4 20
B1 23.0 19
B2 15.0 7
B3 1.2 0.6
C1 1.2 1.1
C2 0 2.4
C3 1.2 2.3