Table 2. Results of a general linear model analysing the effect of intrinsic cost α, pathogen mutation rate and pathogen richness on the average coefficient of variation in host fitness per simulation run.

	Estimate	SE	t-value	P-value
intercept	0.0016	0.0003	4.43	<0.001
α	-0.0014	0.0061	-1.85	0.064
mutation rate	92.68	10.04	9.22	< 0.001
pathogen richness	2.38e-5	1.44e-5	-1.64	0.100
α × mutation rate	-70.49	170	-0.41	0.678
α × pathogen richness	2.63e-4	2.26e-4	1.16	0.245
m. rate × p. richness	-2.06	0.40	-5.13	<0.001
α × m. rate × p. richness	5.56	6.29	0.88	0.377