Table 5. Modelled probability of the dog health status trend as personality index increases.

Effects of the model	Level of effects of the model	Estimate of the parameters	Standard Error	Wald Stat.	Lower CL 95%	Upper CL 95%	P-value
Intercept		2.33878	0.75946	10.37931	0.91595	3.761604	0.001274
Personality index	Two levels: worsened (0) and improved (1)	-2.33303	0.992329	5.52750	-4.27796	-0.388099	0.018720
Breed	Two levels: P (1) and M (0)	0.07985	0.363698	0.04820	-0.63299	0.792680	0.826230
Scale		1.00000	0.00000		1.00000	1.000000

$P\left(H=1\right)=\frac{\text{exp}\left\{0.7595-2.33\left(PI\right)+0.0798(PB)\right\}}{1+\text{exp}\left\{0.7595-2.33\left(PI\right)+0.0798(PB)\right\}}$

PI = Personality index (continuous variable).

PB = Pure breed (discrete variable PB = 1; MB = 0).

H = Health status (dichotomous variable H = 0 worsened; H = 1 improved).

When the personality index (PI) increases and PB is equal to MB, P(H) increases.