Table 2.

Characteristics of Individuals with Down Syndrome With and Without Autoimmune Thyroid Disease

	DS with AITD	DS without AITD
Number of patients	4	3
Age, mean (range)	18 (12–23)	11 (10–12)
Female, n (%)	2 (50)	3 (100)
AITD: HT/GD	3/1	N/A
Mean duration of AITD in years (range)	6 (2–10)	N/A
No. with multiple autoimmune disease	0	N/A

DS, Down syndrome.