Smokers     45.6 36.1 39.0 46.6 39.0 39.0 43.7 39.0 43.7 39.9 36.1 37.1 35.2 31.4 xi   1 2 3 4 5 6 7 8 9 10 11 12 13 14 38 1 –1 1 –1 –1 –1 –1 –1 –1 –1 –1 1 1 1 1 44 2 –1 1 1   1 1 1 1 1 1 1 1 1 1 43 3 –1 1 1 –1 1 1 –1 1 –1 1 1 1 1 1 44 4 –1 1 1 –1 1 1 1 1 1 1 1 1 1 1 40 5 –1 1 1 –1 1 1 –1 1 –1 1 1 1 1 1 38 6 –1 1 –1 –1 –1 –1 –1 –1 –1 –1 1 1 1 1 40 7 –1 1 1 –1 1 1 –1 1 –1 1 1 1 1 1 41 8 –1 1 1 –1 1 1 –1 1 –1 1 1 1 1 1 40 9 –1 1 1 –1 1 1 –1 1 –1 1 1 1 1 1 43 10 –1 1 1   1 1 –1 1 –1 1 1 1 1 1 40 11 –1 1 1 –1 1 1 –1 1 –1 1 1 1 1 1 46 12 1 1 1 –1 1 1 1 1 1 1 1 1 1 1 42 13 –1 1 1 –1 1 1 –1 1 –1 1 1 1 1 1 44 14 –1 1 1 –1 1 1 1 1 1 1 1 1 1 1 42 15 –1 1 1 –1   1 –1 1 –1 1 1 1 1 1 38 16 –1 1 –1 –1 –1 –1 –1 –1 –1 –1 1 1 1 1 49 17 1 1 1 1 1 1 1 1 1 1 1 1 1 1 39 18 –1 1 0 –1 0 1 –1 0 –1 –1 1 1 1 1

Table 2: Values of uij (Eqn 1) for the PCV levels of Table 1 (Smokers= ; Nonsmokers=X).