Avian malaria and bird humoral immune response

Malaria Journal

Table 1 Summary table of linear mixed effect models

	Estimate	se	t value	p value
A—Anti-KLH antibody level
Intercept	0.0135	0.0044	3.03	0.0049
Antigen contact	0.0546	0.0038	14.23	< 0.0001
Infection	− 0.0071	0.0035	− 2.03	0.0630
Sex				0.3852
Sex:infection				0.9385
Sex:antigen contact				0.6984
Infection:antigen contact				0.8441
B—Parasitaemia
Intercept	− 1.3100	0.3637	− 3.60	0.0013
Primary contact	0.4480	0.1722	2.60	0.0149
Secondary contact	0.8352	0.2123	3.93	0.0005
Sex				0.7583
Sex:antigen contact				0.7733
C—Haematocrit
Antigen contact				0.8830
Infection				0.3684
Sex				0.4051
Sex:infection				0.3616
Sex:antigen contact				0.8048
Infection:antigen contact				0.9807
D—Body mass
Intercept	24.6219	0.4981	49.43	< 0.0001
Primary contact	− 0.3594	0.1226	− 2.93	0.0047
Secondary contact	− 0.2631	0.1290	− 2.04	0.0457
Infection				0.4846
Sex				0.5193
Sex:infection				0.6287
Sex:antigen contact				0.9930
Infection:antigen contact				0.3580
E—Daily food consumption
Intercept	12.8814	1.1213	11.49	< 0.0001
Time	0.0438	0.0170	2.58	0.0106
Number of canaries per cage	− 3.2332	0.3168	− 10.21	< 0.0001
Sex				0.8609
Infection				0.8316
Sex:infection				0.2238
Sex:time				0.5214
Infection:time				0.7816

A: anti-KLH antibody level (32 canaries measured twice), B: parasitaemia (log transformed) in infected canaries (17 canaries measured 3 times), C: haematocrit (32 canaries measured 3 times), D: body mass (32 canaries measured 3 times) and E: daily food consumption per canary per cage (16 cages measured 14 times). Minimal models are given with intercept as well as estimates, standard errors (se), t values and p values for each specific term. Non-significant terms are given with the p value of the likelihood ratio test before being dropped-out of the model

ISSN: 1475-2875