Table 1. Table comparing basic characteristics of diabetic cats with excessively high (>1000ng/ml) and low (<1000 ng/ml) serum total insulin-like growth factor-1 (IGF-1) concentration.

	Number	Age (years, mean+/-SD	Breed	Gender	Body weight (kg)	Fructosamine (μmol/l, mean+/-SD)	Insulin dose (iu/day, mean+/-SD)	Clinicians suspecting HS (%)
IGF-1<1000 ng/ml	902 (73.9%)	11.8+/-3.2	747 DSH a (83%), 82 DLH b (9%), 22 Burmese (2%), 7 Abyssinian (0.8%), 5 Maine Coon (0.6%), 5 Siamese (0.6%), 3 Persian (0.3%), 2 Bengal (0.2%), 2 British Blue (0.2%), 2 Russian Blue (0.2%), 10 other breeds (1%)	588 MN d (65%)14 ME e (1.6%)290 FN f (32%)7 FE g (0.8%)	5.2+/-1.4	476+/-152	5.8+/-5	No: 450 (50%)Maybe: 179 (20%)Yes: 10 (1%)
IGF-1>1000 ng/ml	319(26.1%)	11.3+/-2.7	271 DSH (85%), 22 DLH (7%), 5 Burmese (2%), 5 Maine Coon (1.6%), 2 BSH c (0.6%)	226 MN d (71%)8 ME e (2.5%)82 FN f (26%)2 FE g (0.6%)	5.4+/-1.3	560+/-142	13.8+/-10	No: 47 (15%)Maybe: 127 (40%)Yes: 78 (24%)

^aDomestic Short Hair Cat

^bDomestic Long Hair Cat

^cBritish Short Hair Cat

^dmale neutered

^emale entire

^ffemale neutered

^gfemale entire.