p-values for K-S tests using the first level score (<i>L1</i>) and third level score (<i>L3</i>) as test variables for differentiating the efficacy and/or efficiency of AONs.

The second column states the two AON grades being tested. ‘/’ means that two grades of AONs are combined into a single grade for the test. In the second row, ‘1st’ and ‘2nd’ denote the first and second grades being tested (as indicated in the corresponding second column). The last column indicates whether the particular K-S test tests for efficacy and/or efficiency. Significant p-values are highlighted in bold and underlined. Test results for (A) AONs in Set A; and (B) AONs in Set B.