Table 4.

Significant pairwise comparisons of estimated marginal means (EMMs) of the selected linear mixed models for gray whale hormone metabolite concentrations

Hormone metabolites	Significant predictors of the selected models	Estimate	Standard error	Degrees of freedom	T ratio	P value
Progestin metabolites	Demographic unit Immature male—immature female Immature male—pregnant female Mature male—pregnant female Resting female—pregnant female Year 2017–2018	−1.8752 −2.3562 −1.7479 −1.2985 1.07	0.485 0.479 0.387 0.359 0.305	34.1 32.6 27.6 25.2 37.4	−3.863 −4.915 −4.513 −3.621 3.520	0.0150 0.0009 0.0036 0.0349 0.0012
Androgen metabolites	Demographic unit   Mature male—resting female	1.7728	0.458	27.9	3.868	0.0179
Glucocorticoid metabolites	Year   2017–2018	1.04	0.26	33.9	3.990	0.0003
Thyroid metabolites	Year   2017–2018	−2.39	0.493	36.4	−4.849	<0.0001