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Table 1 Association of signalment and historical data with hyperthyroidism 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

CI

P

Age

10 - < 12

121

24.6

94

28.1

16

15.4

–

–

–

≥12 - <14

130

26.5

96

28.7

23

22.1

–

–

–

≥14

240

48.9

145

43.3

65

62.5

–

–

0.0019b

Sex

Male

196

42.0

141

44.3

39

38.6

0.78

0.49–1.24

0.3563

Female

271

58.0

177

55.7

62

61.4

   

Breed

Crossbreed

461

97.3

316

96.9

95

97.9

1.50

0.32–6.97

0.747

Purebreed

13

2.7

10

3.1

2

2.1

   

Lifestyle

Indoor only

105

21.2

74

21.9

16

15.1

–

–

–

Outdoor only

23

4.6

16

4.7

5

4.8

–

–

–

Indoor and Outdoor

368

74.2

248

73.4

83

79.8

–

–

0.349

Parasite control

Frequent or infrequent

350

76.62

244

77.7

68

72.3

0.75

0.44–1.26

0.3317

Never

107

23.4

70

22.3

26

27.7

   

Vaccination

Frequent or infrequent

346

76.5

241

77.7

67

72.0

0.73

0.43–1.24

0.2669

Never

106

23.5

69

22.3

26

28.0

   

Feeding habits

Access to dry food

Yes

310

63.9

208

63.0

69

67.6

1.22

0.76–1.96

0.411

No

175

36.1

122

37.0

33

32.4

   

Fed ring pull

Yes

179

52.0

119

50.6

39

52.7

1.08

0.64–1.83

0.7907

No

165

48.0

116

29.4

35

47.3

   
  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 (age and lifestyle). Fisher’s exact test with odds ratio calculation was used for all other analyses
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Irish Veterinary Journal

ISSN: 2046-0481