Effect of a povidone-iodine intrauterine infusion on progesterone levels and endometrial steroid receptor expression in mares

Table 1 Level of significance of fixed effects and interactions studied in the statistical model.

Variable	treat.	day	treat. × day	obs.	cell type	sect.	treat. × day × sect. × cell type.
P4	NS	***	**
ERα
PPC	NS	*	NS	NS	***	**	NS
SI	NS	*	NS	NS	***	**	NS
PR
PPC	*	NS	NS	0.1	***	***	***
SI	NS	NS	NS	*	***	***	***

NS: not significant
*P < 0.05, ** P < 0.01,
*** P < 0.001
Fixed effects for progesterone (P4) are treatment (treat.: with or without infusion), day post ovulation (day: 0, 2, 6, 9, and 15) and their interactions. For estrogen and progesterone receptor (ERα; PR) are as well treatment, day (6 y 15), observer (obs.), cell type (luminal epithelium, glandular epithelium, stroma), section (sect.: superficial or deep) and their interactions. PPC, percentage of positive cells; SI, staining intensity.

ISSN: 1751-0147