Table 1.

Demographic and clinical information of study subjects

Subject categories	NC	FDR	T1D
Treg frequency analysis
Total number	20	14	37
Age range	22.5 ± 17.5 (1–64)	22.2 ± 18.6 (3–51)	18.2 ± 12.8 (6–54)
Male/Female	10/10	8/6	15/18
Duration of TID(years)			8.1 ± 8.0 (1–29.6)
Proliferation assay
Total number	34 + 6*	6	41
Age range	28.9 ± 15.0 (5–61)	9 ± 1.9 (6–11)	22.2 ± 16.0 (3–55)
Male/Female	22/18	1/5	21/20
Duration of T1D(years)			10.9 ± 1.3 (3–37.4)
Suppression assay
Total number	26 + 6*	0	25
Age range	33 ± 13.4 (7–51)		26.3 ± 17.3 (3–55)
Male/Female	17/15		15/10
Duration of T1D(years)			13.4 ± 12.3 (1–37.4)

All subjects are Caucasian except 5 Asian and 1 African subjects labeled with *, which were excluded from statistical analysis