Molar Relation ANB Total chi-square (p-value) Kappa (κ) Statistic (p-value)
Class I Class II Class III
Class I 198 127 19 344 (p<0.0001)* 0.219
(p<0.0001)*
% 41.4% 26.7% 3.9% 72%
Class II 34 58 1 93
% 7.1% 12.1% 0.21% 19.5%
Class III 17 4 20 41
% 3.5% 0.84% 4.2% 8.5%
Total 249 189 40 478
52.1% 39.5% 8.4% 100%
*Statistically significant
Table 1: Agreement between anteroposterior molar relation and ANB angle