Table 2.

Derivation of dependence level

Level 0	0 to all items
Level 1	Either A, B, or C = 1
Level 2	2 of A, B, or C = 1 OR A or B = 2 OR D = 1
Level 3	E, F, or G = 1
Level 4	H, I, or J = 1
Level 5	K, L, or M = 1