Table 3.

Logistic regression model results assessing Imidacloprid detection probability for multiple variables in river otters collected in North Dakota, USA from 2015 to 2020

Model	Variable	β	SE	P	n
Demographic	Intercept	-0.43	0.34	0.20	100
	Age	0.06	0.08	0.43
	SexMale	-0.53	0.43	0.22
Major Watershed	Intercept	-0.69	0.87	0.42	100
	James River	-15.87	2399.54	0.99
	Mouse River	-15.87	1696.73	0.99
	Red River	0.13	0.89	0.89
Minor Watershed	Intercept	-0.69	0.87	0.42	100
	Elm River	-17.87	2917.00	0.99
	Forest River	1.10	1.26	0.38
	Goose River	0.00	1.12	1.000
	James River	-17.87	6523.00	0.99
	Maple River	0.29	1.08	0.79
	Park River	1.61	1.20	0.18
	Pembina River	-17.87	2663.00	0.99
	Red River	-17.87	1883.00	0.99
	Sheyenne River	0.69	0.96	0.47
	Souris River	-17.87	4612.00	0.99
	Turtle River	-0.69	1.41	0.62
	Wild Rice River	1.20	1.13	0.29
Distance to Water	Intercept	-1.22	0.28	0.000	100
	Distance	0.83	0.26	0.002
Date	Intercept	-2.61	1.21	0.03	100
	Julian Date	0.04	0.01	0.004
	Julian Quadratic	0.00	0.00	0.001
Year	Intercept	16.57	2399.54	0.99	100
	Year2017	-17.34	2399.54	0.99
	Year2018	-17.21	2399.54	0.99
	Year2019	-16.94	2399.54	0.99
	Year2020	-33.13	2938.83	0.99