Table 2.

Incidence risk of hypertension diagnosis during study period

Variable		N	Hypertension diagnosed	Incidence risk of hypertension (%)	95% CIa
Overall		1445	282	19.5	17.5‐21.7
Age (years)	<9	300	9	3.0	1.4‐5.6
	≥9	1139	270	23.7	21.3‐26.3
	0 to <4.5	142	1	0.7	0.02‐3.9
	4.5 to <9	158	8	5.1	2.2‐9.7
	9 to < 13.5	413	44	10.7	7.8‐14.0
	13.5 to <18	566	167	29.5	25.8‐33.5
	18 to <22.5	155	56	36.1	28.6‐44.2
	22.5+	5	3	60.0	14.7‐94.7
Sex	Male	702	145	20.7	17.7‐23.8
	Female	793	136	18.4	15.7‐21.4
Neuter	Entire	78	22	28.2	18.6‐39.5
	Neutered	1119	228	20.4	18.1‐22.9
Breed	Crossbred	1237	260	21.0	18.8‐23.3
	Purebred	201	19	9.5	5.4‐13.5
Reason for presentation	Clinical signs	471	178	37.8	33.4‐42.3
	Anaesthetic monitoring	425	3	0.7	0.01‐2.1
	Geriatric health check	40	12	30.0	16.6‐46.5
	Monitoring of concurrent disease	419	88	21.0	1.7‐25.2
	Other	5	1	20.0	0.5‐71.6

Abbreviation: CI, confidence interval.

^aCalculated using exact method