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. 2013 Nov 27;8:43. doi: 10.1186/1749-799X-8-43

Table 3.

AO/OTA classification

AO/OTA classification Number Percentage (%)
33 A1
 17
 15.3
33 A2
 5
 4.5
33 A3
 22
 19.8
33 B1
 3
 2.7
33 B2
 1
 0.9
33 B3
 0
 0.0
33 C1
 6
 5.4
33 C2
 38
 34.2
33 C3 19 17.1