Table 6. Prevalence of syndromic disorders affecting body location and organ system recorded in overall dogs, purebreds only and crossbreds only that attended primary veterinary practices in England.

	Overall				Purebred		Crossbred
	No.		Preva%	95% CIb	Preva%	95% CIb	Preva%	95% CIb	P–value
Body Location
Head/neck	1,273		32.8	30.7–34.9	34.0	31.7–36.2	28.5	24.9–32.0	0.003
Abdomen	993		25.6	23.6–27.5	25.9	23.7–28.0	24.6	21.5–27.7	1.000
Limb	679		17.5	15.9–19.1	17.3	15.5–19.1	18.3	15.7–20.9	1.000
Anus/perineum	359		9.2	8.1–10.4	9.1	7.8–10.5	9.8	7.6–12.0	1.000
Thorax	353		9.1	8.1–10.1	9.2	8.1–10.4	8.7	6.5–10.8	1.000
Vertebral column	78		2.0	1.5–2.5	2.0	1.5–2.6	2.0	1.0–3.0	1.000
Pelvis	33		0.9	0.6–1.2	0.9	0.7–1.4	0.5	0.2–1.3	0.684
Tail	21		0.5	0.4–0.8	0.7	0.5–1.0	0.0	0.0–0.5	0.038
Organ system
Integument	1,408	36.3		33.9–38.6	37.6	35.0–40.2	31.4	28.0–34.7	0.001
Digestive	1,144	29.5		27.5–31.5	29.4	27.2–31.6	30.0	26.6–33.3	1.000
Musculoskeletal	573	14.8		13.5–16.0	14.1	12.6–15.6	17.3	14.8–19.8	0.110
Connective/Soft tissue	503	13.0		11.6–14.3	13.2	11.6–14.7	12.3	10.2–14.4	1.000
Ocular	447	11.5		10.2–12.8	12.2	10.6–13.7	9.2	7.2–11.1	0.057
Auditory	437	11.3		10.0–12.5	12.3	11.0–13.6	7.4	5.5–9.3	0.002
Nervous	301	7.8		6.8–8.7	7.7	6.7–8.7	7.9	6.2–9.6	1.000
Respiratory	273	7.0		6.2–7.9	7.0	6.0–8.1	7.2	5.2–9.1	1.000
Cardiovascular	241	6.2		5.3–7.1	6.5	5.5–7.4	5.3	3.5–7.1	1.000
Urinary	227	5.8		5.1–6.6	5.9	4.9–6.8	5.8	4.1–7.5	1.000
Reproductive	184	4.7		4.1–5.4	4.7	4.0–5.5	4.9	3.5–6.3	1.000
Endocrine	72	1.9		1.5–2.3	1.8	1.3–2.3	2.1	1.2–3.1	1.000
Haematopoietic	53	1.4		1.0–1.7	1.4	1.0–1.8	1.3	0.5–2.1	1.000
Hepatobiliary	29	0.8		0.5–1.1	0.9	0.6–1.3	0.1	0.0–0.7	0.088
Lymphatic	26	0.7		0.5–1.0	0.6	0.4–1.0	0.9	0.4–1.8	1.000

P–values (Holm–adjusted) represent comparison between purebreds and crossbreds.

^aPrev prevalence.

^b95% CI 95% confidence interval.