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. 2009 Dec 9;8:56. doi: 10.1186/1476-069X-8-56

Table 8.

simulated null distribution of LRT2p-con and LRT2p-lin including "city", by dose range

Dose range Site Φm LRT2p-con
Shape
LRT2p-con
Rate
t0.95 LRT2p-lin
shape
LRT2p-lin
rate
T0.95
0-20 Stom 11 2.38 0.59 9.06 1.98 0.65 7.25
5-500 Stom 8 2.03 0.62 7.72 1.30 0.55 6.42
0-20 Liver 37 2.50 0.73 7.63 1.69 0.64 6.58
5-500 Liver 37 1.62 0.49 8.39 1.14 0.53 6.16
0-20 Lung 16 2.47 0.58 9.43 2.09 0.68 7.20
5-500 Lung 16 1.81 0.61 7.26 1.38 0.66 5.58
0-20 Panc 10 2.35 0.61 8.65 2.13 0.71 6.93
5-500 Panc 42 1.72 0.52 8.18 1.18 0.60 5.61
0-20 Leuk 25 2.11 0.62 7.94 1.59 0.67 6.01
5-500 Leuk 28 1.87 0.62 7.34 1.25 0.56 6.14

gamma distributions are fitted to 500 simulations of LRT2p-con for the null hypothesis (β000) = (0,0, arbitrary) and of LRT2p-lin for the null hypothesis (β000) = (Inline graphic,0, arbitrary) where Inline graphic is the fitted parameter for the linear model. Models include "city" as a control covariate and are fitted at the optimal (integral) latency Φm for the site and dose range.

shape: shape parameter of the fitted gamma distribution

rate: rate parameter of the fitted gamma distribution

t0.95: critical value of the fitted gamma distribution for Inline graphic

T0.95: critical value of the fitted gamma distribution for Inline graphic