Table 1.

Prevalence of steroid-enzyme autoantibodies (SEAbs) in male patients with autoimmune polyendocrine syndrome type 1 (APS-1) APS-2, APS-4 and isolated autoimmune Addison's disease (AAD).

Autoantibodies	APS-1	APS-2	APS-4	Isolated AAD
StCA	60·7% (17/28)	12·5% (10/80)	9% (1/11)	3% (1/35)
17αOHAbs	46·4% (13/28)	8·75% (7/80)	9% (1/11)	0% (0/35)
SCCAbs	46·4% (13/28)	2·6% (4/80)	0% (0/11)	3% (1/35)

StCA = steroid-producing cells autoantibodies; 17α-OHAbs = steroid 17α-hydroxylase autoantibodies; SCCAbs = side-chain-cleavage enzyme autoantibodies.