Table 5. Outcome of radioiodine treatment in previous reports using either a fixed dosing method or an individualized dose based on a clinical score to treat feline hyperthyroidism.

Study	Year	Method	Dosage	Euthyroidism	Persistent hyperthyroidism	Iatrogenic hypothyroidism
M.E Peterson et al., JAVMA	1995	Clinical score	Mean: 125 MBq = 3.4 mCi	94%	1.5%	2.1%
Y. Fernandez et al., JFMS	2019	Clinical score	Median: 130 MBq = 3.5 mCi	40%	6%	54%
Chun et al., Vet R US	2002	Fixed	148 MBq = 4 mCi	90%	1%	9%
J.M. Lucy et al., JVIM	2017	Fixed	74 versus 148 MBq = 4 mCi versus 2 mCi	65%	2.6%	32%
N.C. Find et al., JSAP	2019	Fixed	111 MBq = 3.0 mCi	65%	10%	25%
Yu et al., JFMS	2020	Fixed	154 MBq = 4.2 mCi	82.5%	2.5%	15%