Table 4.

Cox Proportional Hazards Models and significance of the survival analysis for each of the demographic characteristics

	N	Day 7 %	Day 14 %	Day 21 %	> 30 days %	Hazard ratio (CI)	Pr (> |z|)
Gender
Female	138	9.5	23	38	45
Male	112	13	31	48	63	1.17 (0.72–1.93)	0.52
Source
OS	125	7.3	19	33	45
Stray	125	16.3	36	50	61	2.46 (1.48–4.09)	0.001
Gender status
Neutered	148	15	30	45	53
Intact	102	7	15	35	44	0.43 (0.23–0.78)	0.01
Age
Adult	50	14	22	40	44
Juvenile	134	19	27	44	63	1.85 (0.94–3.64)	0.07
Senior	66	11	30	45	60	1.19 (0.67–2.10)	0.56
Carrier state
Non-carrier	162	2.7	13	28	41
Carrier	88	29	46	55	76	2.39 (1.44–3.99)	< 0.001

N — total number; CI — confidence interval.