Ref (type)	Population	Outcome, Interventions	Results and statistical analysis	Effect size	Favours
Bone mineral density (BMD)
	28 postmenopausal women with nodular goitre	Spine BMD 2 years 102% of initial BMD with radioactive iodine 96% of initial BMD with no treatment	P <0.02	Effect size not calculated	radioactive iodine
	28 postmenopausal women with nodular goitre	Hip BMD 2 years 102% of initial BMD with radioactive iodine 98% of initial BMD with no treatment	P <0.01	Effect size not calculated	radioactive iodine