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Table 2 Association of clinical signs with hyperthyroidism (T4 > 60 nmol/L) in 507 cats 10 years and older presented to primary care veterinary practices in the greater Dublin area

From: Prevalence and risk factors for hyperthyroidism in Irish cats from the greater Dublin area

   All cats (n = 507) Euthyroid cats (n = 346) Hyperthyroid cats (n = 107)    
Variable   na % na % na % OR 95% CI P
Goitre (L, R or Both) Yes 112 23.1 61 18.5 40 39.0 2.85 1.75–4.62 <0.0001
No 373 76.9 269 81.5 62 60.8    
Vomiting Yes 148 69.5 99 29.9 40 39.6 1.53 0.97–2.44 0.0696
No 337 30.5 232 70.1 61 60.4    
Diarrhoea Yes 54 11.3 31 9.0 15 15.0 1.68 0.86–3.25 0.1403
No 424 88.7 295 85.3 85 85.0    
Respiration rate Normal 377 74.4 267 77.2 70 70.7 1.72 1.04–2.88 0.0378
Increased 106 20.9 64 18.5 29 27.1    
Murmur Yes 124 26.1 79 24.2 31 32.3 1.49 0.91–2.45 0.1451
No 351 73.9 247 75.8 65 67.7    
Heart Rate < 200 280 58.6 201 61.7 50 50.5
200–240 158 33.1 106 32.5 32 32.3
> 240 40 8.4 19 5.8 17 17.2 0.001b
Polyphagia Yes 162 34.7 98 30.4 48 51.1 2.38 1.5–3.81 0.0003
No 305 65.3 224 69.6 46 48.9    
Weight loss Yes 328 68.0 208 63.2 87 85.3 3.37 1.86–6.09 <0.0001
No 154 32.0 121 36.8 15 14.7    
  1. arefers to number of cases where recorded
  2. blogistic regression analysis (see text for exact results)
  3. Chi-squared was used to analyse data with more than two categories (respiration rate and heart rate). Fisher’s exact test with odds ratio calculation was used for all other analyses