Table 2.

Factors predicting telomere length in blood and different body tissues at 105 days post-infection in siskins, where birds were either controls or experimentally infected with avian malaria. A linear-mixed model was used to investigate the effect of malaria infection on telomere length (at 105 DPI) in different tissues within an individual (fitting tissue telomere length as the response variable), sex, malaria infection status, and tissue as fixed factors, and bird ID as a random factor in the model with all 2-way interactions. Non-significant interactions were excluded from the model (using stepwise backward elimination).

source	estimate	s.e.	d.f.	F	p
response variable: tissues telomere length
sex	0.69	0.063	1,76	2.02	0.160
malaria infection	−0.030	0.063	1,76	21.86	<0.0001
tissues	−0.095	0.016	1,76	36.22	<0.0001