Table 1.

Effects of the independent variables and the relevant interaction terms on the biomarkers

	n	R 2	Duration	Disease	Disease*Duration	Hospital	Hospital*Duration	Hospital*Disease	Sex	Age	TPP	PCV
Fibrinogen	305	0.36	<0.001	<0.001	NS	NS	NS	NS	NS	NS	<0.001	<0.001
SAA serum	330	0.33	<0.001	<0.001	NS	NS	NS	NS	NS	NS	NS	0.001
SAA PF	235	0.30	<0.001	0.003	0.001	NS	NS	NS	NS	NS	NS	NS
Hp serum	326	0.26	<0.001	0.049	0.03	<0.001	NS	NS	NS	0.002	<0.001	<0.001
Hp PF	236	0.26	0.001	<0.001	0.01	NS	NS	NS	NS	NS	NS	NS
WBC	306	0.21	NS	0.02	0.01	0.03	NS	NS	NS	NS	<0.001	NS
Lactate	302	0.26	<0.001	<0.001	NS	<0.001	NS	NS	NS	NS	NS	<0.001

n, number of horses included in the multivariate logistic regression analyses for the individual biomarker; R ², regression coefficient indicating the Goodness of Fit for the model. The closer to 1, the better fit; PF, peritoneal fluid; TPP, total plasma protein; PCV, packed cell volume; WBC, white blood cell count in the blood.