Table 1.

Characteristics of the study subjects^§

	Controls I	Thyroiditis	Graves'	P
n	220	220	104
Gender (F/M)	186/34	186/34	83/21	n.s.
Age (years)	54 ± 16	48 ± 15*	44 ± 11*	0·0001
CD38Ab (%)	1·8	10·4*	7·7*	0·0009

^§Data are mean ± s.d.;

^*different from controls at P < 0·05 by anova or χ² testing.