Table 1.

Results of the final general linear mixed model obtained by analysing serum soluble alpha Klotho levels from chimpanzees and bonobos of both sexes, with species and sex in an interaction term, and age as a fixed effect

Term	Estimate	SE	DF	χ2	P-value
Intercept	6.802	0.071
Sex	−0.046	0.116
Species	−0.075	0.092
Age at sample collection	− 0.367	0.042	1	27.452	<  0.001
Interaction sex with species	0.277	0.155	1	3.034	0.082