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Table 5 Lethal dose ratios for the examples fitted to the probit-log(dose) regression models calculated by the ML procedure (Excel), Polo-Plus and SPSS

From: Comparing lethal dose ratios using probit regression with arbitrary slopes

Interested levels (π) Comparison Lethal ratio (95%CL) RMP (95%CL)a
Excel Polo-Plus SPSS2b
10 Rotenone/Deguelin 0.745 (0.496, 1.119) 0.745 (0.494, 1.122)  
Rotenone/Mixture 1.211 (0.812, 1.808) 1.211 (0.805, 1.824)  
Fairfax/Scheafer 1.006 (0.645, 1.569) 1.006 (0.642, 1.577)  
Fairfax / Pixley c 0.211 (0.128, 0.346) 0.221 (0.132, 0.369)  
BugRes / BugLab 0.697 (0.376, 1.293) 0.520 (0.238, 1.138)  
50 Rotenone/Deguelin 0.489 (0.398, 0.602) 0.489 (0.397, 0.603) 0.455 (0.173, 0.793)
Rotenone/Mixture 0.761 (0.623, 0.929) 0.761 (0.621, 0.933) 0.710 (0.440, 1.005)
Fairfax/Scheafer 1.097 (0.905, 1.329) 1.097 (0.902, 1.335) 1.106 (0.811, 1.550)
Fairfax / Pixley c 0.244 (0.198, 0.301) 0.250 (0.201, 0.311) 0.261 (0.045, 0.571)
BugRes / BugLab 2.254 (1.753, 2.898) 2.030 (1.478, 2.787) 3.898 (0.455, 4701.677)
90 Rotenone/Deguelin 0.321 (0.243, 0.425) 0.321 (0.241, 0.428)  
Rotenone/Mixture 0.478 (0.357, 0.642) 0.478 (0.354, 0.646)  
Fairfax/Scheafer 1.196 (0.819, 1.747) 1.196 (0.814, 1.758)  
Fairfax / Pixley c 0.282 (0.189, 0.422) 0.283 (0.186, 0.430)  
BugRes / BugLab 7.288 (4.014, 13.232) 7.926 (4.077, 15.412)  
99 Rotenone/Deguelin 0.228 (0.142, 0.366) 0.228 (0.140, 0.371)  
Rotenone/Mixture 0.328 (0.199, 0.539) 0.328 (0.197, 0.546)  
Fairfax/Scheafer 1.284 (0.667, 2.469) 1.284 (0.661, 2.493)  
Fairfax / Pixley 0.318 (0.158, 0.642) 0.313 (0.151, 0.651)  
BugRes / BugLab 18.968 (6.820, 52.753) 24.064 (7.520, 77.007)  
  1. aRMP, relative median potency. We did not show the RMP of SPSS by inputting C methods because of different C values in the two samples
  2. bSPSS calculates the corrected p from the data. We did not calculate RMP with SPSS by inputting C methods because of different C values in the two samples
  3. cBold items indicated the data sets included natural responses in the control group