Molar Relation Wits Total chi-square (p-value) Kappa (κ) Statistic (p-value)
Class I Class II Class III
Class I 110 102 132 344 (p<0.0001)* 0.198
(p<0.0001)*
% 23% 21.3% 27.6% 72%
Class II 18 64 11 93
% 3.8% 13.4% 2.3% 19.5%
Class III 3 3 35 41
% 0.63% 0.63% 7.3% 8.5%
Total 131 169 178 478
27.4% 35.4% 37.2% 100%
*Statistically significant
Table 2: Agreement between anteroposterior molar relation and Wits appraisal.