C/P Ranges No. of Cases % of Cases Accumalative %
0-0.50 13 7.26 7.26
0.51-1.0 68 37.99 45.25
1.01-1.5 46 25.70 70.95
1.51-2.0 24 13.41 84.36
2.01-2.5 15 8.38 92.74
2.51-3.0 3 1.68 94.41
3.01-3.5 1 0.56 94.97
3.51-4.0 1 0.56 95.53
4.01-4.5 1 0.56 96.09
4.51-5.0 0 0.00 96.09
>5.01 7 3.91 100.00
  179 100.00  
Table 2: Number of cases in incremental ranges of 0.50 for fentanyl C/P ratios.