Dose-response model of murine typhus (Rickettsia typhi): time post inoculation and host age dependency analysis

BMC Infectious Diseases

Table 5 Model Fit Comparison for Seroconversion in Oral Exposed Young rat (7 day old)

Data set	Number of Doses	Model	Minimized Deviance	Degrees of Freedom	χ_α,n-k ²	Parameters	Difference in deviances	χ ² Value at 1 degree of freedom
[9]	5	Exponential	66.172	4	11.07	k = 0.0149	63.83	3.84
	5	Beta Poisson*	2.34	3	9.48	α = 0.241
						N₅₀ = 28.92

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