Related Experiment Video
Updated: Jun 29, 2026

In vivo Characterization of Endocrine Disrupting Chemical Effects via Thyroid Hormone Action Indicator Mouse
Published on: October 6, 2023
Prevalence of and risk factors for feline hyperthyroidism in Hong Kong
Cornelia S De Wet1, Carmel T Mooney, Peter N Thompson
1Department of Companion Animal Clinical Studies, Section of Small Animal Medicine, Faculty of Veterinary Science, University of Pretoria, South Africa. hongkong_cats@hotmail.com
Abstract:
A study was conducted to determine the prevalence of and potential risk factors for feline hyperthyroidism in Hong Kong. Serum total thyroxine (T(4)) was measured in 305 cats aged 10 years and older that presented at various veterinary clinics in Hong Kong. The prevalence of hyperthyroidism (T(4)>50 nmol/l) within this population was 3.93% and there was no significant difference in prevalence between healthy (3.16%) and sick (4.37%) cats. Older cats (>15 years) were more likely to be affected and domestic shorthair cats were less likely to be diagnosed with hyperthyroidism than the other breeds combined. No specific association between the development of feline hyperthyroidism and food type was observed. The prevalence of feline hyperthyroidism in Hong Kong was less than that reported for most other parts of the world, despite the presence of previously identified risk factors.
Related Concept Videos
Hyperthyroidism I: Introduction
Hyperthyroidism II: Pathophysiology
Graves' Disease I: Introduction
Graves Disease II: Pathophysiology
Hypothyroidism II: Pathophysiology
Toxoplasmosis

