Table 3.

Generalized Linear Model Testing for the Effect of the Different Factors on Viral Load (within-host fitness)

Source of Variation	LRTa	d.f.	P	Magnitude of the Effectb	Powerc
Intersection	300.916	1	<0.001	0.936	1
Passage	449.300	1	<0.001	0.990	1
Genotype	272.237	3	<0.001	0.235	0.226
Lineage (Genotype)	426.675	11	<0.001	0.989	1
Passage×Genotype	491.470	4	<0.001	0.976	1
Passage×Lineage (Genotype)	375.156	11	<0.001	0.978	1

Note.—The fitted model assumes a Gamma distribution of errors and a logarithmic link function and is shown in equation (4).

^aLikelihood ratio test.

^bEvaluated as ${\eta }_P^2$.

^cConventionally, values >0.8 are considered as a standard for adequacy.