Additional file 9. Correlations of altered markers for gastric acid secretion with the number of H. suis bacteria and with the altered markers for inflammation in H. suis -infected pigs of different age groups. r = Pearson correlation coefficient, calculated using SPSS Statistics 24®. A r-value close to 1 indicates a strong, positive correlation, whereas a r-value of −1 indicates a strong, negative correlation. P-values lower than 0.05 are considered to be significant./= no clear correlation, yes = correlation with H. suis colonization rate (see Additional files 6, 8 for the r and p-values)
