Table 4. Summary of simulations.

r values	Specificity, %
ra = 0.25, rd = 0.80, rn = 0.22, ri = 0.88	94.9
(Estimated from data)
ra, rd, rn = 0.2-0.9
ri = 0.2-0.6	>99
ri = 0.7	>98
ri = 0.8	>95
ra, rd = 0.2-0.9, ri = 0.9
rn = 0.2	>85
rn = 0.3	>90
rn = 0.4-0.9	>95

Summary of specificity statistic (number of true positives/number of total positives) for 1,000 data sets each for combinations of r values from 0.2-0.9. For each combination of r values in the range given in the first column, the specificity exceeds the value given in the second column. For example, for every combination of r values with r_a, r_d, and r_n between 0.2 and 0.9 and r_i between 0.2 and 0.6, specificity exceeds 99%.