Table 4.

GLMM of the effect of time and sterilisation rate on dog density on 20 routes. Significance levels: “.” < 0.10, “**” < 0.001, “***” < 0.0001.

Predictor Variables	Exponentiated Coefficient (Proportional Change in Dog Density)	95% CI	p Value	Significance
Years since baseline	1.09	(0.97–1.22)	0.16
Sterilisation rate	12.55	(4.54–34.66)	<0.0001	***
Proportion of spays	1.08	(0.87–1.34)	0.489
Years since baseline × sterilisation rate	0.37	(0.27–0.52)	<0.0001	***
Years since baseline × proportion of spays	1.06	(0.97–1.17)	0.211
Sterilisation rate × proportion spays	3.02	(0.91–10.06)	0.071	.
Years since baseline × sterilisation rate × proportion of spays	0.52	(0.35–0.77)	0.001	**