Table 4.

Analysis results for H. polygyrus-specific IgG1 and total fecal IgA comparison between laboratory, Liverpool and Scotland sites

Model covariates	Hp IgG1	Total IgA
Sex (male)	0.28, P = 0.585	−2.08, P = 0.384
Hp infection (yes)	1.52, P = 0.013*	−1.74, P = 0.544
Eh infection (yes)	−1.53, P = 0.064*	−7.42, P = 0.059•
Experiment (Scotland)	3.30, P < 0.0001***	5.21, P = 0.140
Experiment (Liverpool)	3.24, P < 0.0001***	25.81, P < 0.0001***
Hp infection  ×  Eh infection	2.45, P = 0.045*	3.08, P = 0.547

Each column represents a single model, each row represents a model covariate. Each cell contains the covariate estimate and P value. Comparison levels for factors are given in brackets. Hp stands for H. polygyrus, Eh stands for E. hungaryensis.

****P < 0.001, **P < 0.01, *P < 0.05, ^•P < 0.1.