Table 6.

Univariable analysis of the clinical signs associated with hyperthyroidism (total T₄>50 nmol/l) in cats 10 years and older presented to veterinary clinics in Hong Kong^*

Variable	Category	N	Hyperthyroid cats
			n	%	P †
Weight loss	Yes	140	7	5.00	0.4
	No	155	4	2.58
Polyphagia	Yes	19	3	15.79	0.03
	No	278	8	2.88
Heart rate	<200	183	7	3.83	0.6
	200–240	93	4	4.30
	>240	12	1	8.33
Cardiac murmur	Yes	39	1	2.56	>0.999
	No	260	11	4.23
Respiration	Normal	269	10	3.72	0.5
	Increased	24	2	8.33
	Dyspnoeic	8	0	0.00
Vomiting	Yes	80	4	5.00	0.5
	No	217	7	3.23
Diarrhoea	Yes	11	3	27.27	0.005
	No	283	8	2.83
Palpable thyroid	Yes	2	1	50	0.08
	No	296	11	3.72
Alanine aminotransferase>126	Yes	41	5	12.20	0.01
	No	264	7	2.65
Alkaline phosphatase>123	Yes	6	2	33.33	0.02
	No	298	10	3.36

^*Data were not available for all of the cats in the study population.

^†P-value for two-tailed Fisher's exact test.